Home / 739,282.75-1,020,209.48-399,750.19

Finding the Fourth Proportional to 739,282.75, 1,020,209.48 and 399,750.19

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Solution

The fourth proportional to 739,282.75, 1,020,209.48 and 399,750.19 is: 551,654.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,282.75 : 1,020,209.48 = 399,750.19 : x
  2. Step 2: Convert to fraction form
    739,282.75/1,020,209.48 = 399,750.19/x
  3. Step 3: Cross multiply
    739,282.75x = 1,020,209.48 × 399,750.19
  4. Step 4: Simplify right side
    739,282.75x = 407,828,930,419.59
  5. Step 5: Solve for x
    x = 407,828,930,419.59/739,282.75
  6. Step 6: Final answer
    x = 551,654.87

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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.