Home / 436,421.54-602,285.55-245,446.22

Finding the Fourth Proportional to 436,421.54, 602,285.55 and 245,446.22

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Solution

The fourth proportional to 436,421.54, 602,285.55 and 245,446.22 is: 338,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,421.54 : 602,285.55 = 245,446.22 : x
  2. Step 2: Convert to fraction form
    436,421.54/602,285.55 = 245,446.22/x
  3. Step 3: Cross multiply
    436,421.54x = 602,285.55 × 245,446.22
  4. Step 4: Simplify right side
    436,421.54x = 147,828,711,608.12
  5. Step 5: Solve for x
    x = 147,828,711,608.12/436,421.54
  6. Step 6: Final answer
    x = 338,729.18

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Double scale
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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.