Home / 742,807.11-1,025,073.79-403,275.36

Finding the Fourth Proportional to 742,807.11, 1,025,073.79 and 403,275.36

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Solution

The fourth proportional to 742,807.11, 1,025,073.79 and 403,275.36 is: 556,519.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,807.11 : 1,025,073.79 = 403,275.36 : x
  2. Step 2: Convert to fraction form
    742,807.11/1,025,073.79 = 403,275.36/x
  3. Step 3: Cross multiply
    742,807.11x = 1,025,073.79 × 403,275.36
  4. Step 4: Simplify right side
    742,807.11x = 413,387,001,688.81
  5. Step 5: Solve for x
    x = 413,387,001,688.81/742,807.11
  6. Step 6: Final answer
    x = 556,519.98

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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.