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Finding the Fourth Proportional to 718,807.72, 992,273.40 and 464,283.04

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Solution

The fourth proportional to 718,807.72, 992,273.40 and 464,283.04 is: 640,916.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,807.72 : 992,273.40 = 464,283.04 : x
  2. Step 2: Convert to fraction form
    718,807.72/992,273.40 = 464,283.04/x
  3. Step 3: Cross multiply
    718,807.72x = 992,273.40 × 464,283.04
  4. Step 4: Simplify right side
    718,807.72x = 460,695,710,663.14
  5. Step 5: Solve for x
    x = 460,695,710,663.14/718,807.72
  6. Step 6: Final answer
    x = 640,916.48

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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.