Home / 875,354.28-1,313,171.40-369,920.16

Finding the Fourth Proportional to 875,354.28, 1,313,171.40 and 369,920.16

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Solution

The fourth proportional to 875,354.28, 1,313,171.40 and 369,920.16 is: 554,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,354.28 : 1,313,171.40 = 369,920.16 : x
  2. Step 2: Convert to fraction form
    875,354.28/1,313,171.40 = 369,920.16/x
  3. Step 3: Cross multiply
    875,354.28x = 1,313,171.40 × 369,920.16
  4. Step 4: Simplify right side
    875,354.28x = 485,768,574,395.42
  5. Step 5: Solve for x
    x = 485,768,574,395.42/875,354.28
  6. Step 6: Final answer
    x = 554,939.39

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Double scale
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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.