Home / 436,445.12-602,288.45-245,458.50

Finding the Fourth Proportional to 436,445.12, 602,288.45 and 245,458.50

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Solution

The fourth proportional to 436,445.12, 602,288.45 and 245,458.50 is: 338,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,445.12 : 602,288.45 = 245,458.50 : x
  2. Step 2: Convert to fraction form
    436,445.12/602,288.45 = 245,458.50/x
  3. Step 3: Cross multiply
    436,445.12x = 602,288.45 × 245,458.50
  4. Step 4: Simplify right side
    436,445.12x = 147,836,818,277.03
  5. Step 5: Solve for x
    x = 147,836,818,277.03/436,445.12
  6. Step 6: Final answer
    x = 338,729.46

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.