Home / 939,752.10-1,409,628.15-340,712.55

Finding the Fourth Proportional to 939,752.10, 1,409,628.15 and 340,712.55

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Solution

The fourth proportional to 939,752.10, 1,409,628.15 and 340,712.55 is: 511,068.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,752.10 : 1,409,628.15 = 340,712.55 : x
  2. Step 2: Convert to fraction form
    939,752.10/1,409,628.15 = 340,712.55/x
  3. Step 3: Cross multiply
    939,752.10x = 1,409,628.15 × 340,712.55
  4. Step 4: Simplify right side
    939,752.10x = 480,278,001,538.28
  5. Step 5: Solve for x
    x = 480,278,001,538.28/939,752.10
  6. Step 6: Final answer
    x = 511,068.83

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.