Home / 723,787.79-998,746.52-401,417.10

Finding the Fourth Proportional to 723,787.79, 998,746.52 and 401,417.10

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Solution

The fourth proportional to 723,787.79, 998,746.52 and 401,417.10 is: 553,910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,787.79 : 998,746.52 = 401,417.10 : x
  2. Step 2: Convert to fraction form
    723,787.79/998,746.52 = 401,417.10/x
  3. Step 3: Cross multiply
    723,787.79x = 998,746.52 × 401,417.10
  4. Step 4: Simplify right side
    723,787.79x = 400,913,929,686.41
  5. Step 5: Solve for x
    x = 400,913,929,686.41/723,787.79
  6. Step 6: Final answer
    x = 553,910.88

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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.