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Finding the Fourth Proportional to 742,952, 1,025,273.76 and 425,000

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Solution

The fourth proportional to 742,952, 1,025,273.76 and 425,000 is: 586,500

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,952 : 1,025,273.76 = 425,000 : x
  2. Step 2: Convert to fraction form
    742,952/1,025,273.76 = 425,000/x
  3. Step 3: Cross multiply
    742,952x = 1,025,273.76 × 425,000
  4. Step 4: Simplify right side
    742,952x = 435,741,348,000
  5. Step 5: Solve for x
    x = 435,741,348,000/742,952
  6. Step 6: Final answer
    x = 586,500

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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.