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Finding the Fourth Proportional to 508,972.40, 763,458.60 and 465,426.80

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Solution

The fourth proportional to 508,972.40, 763,458.60 and 465,426.80 is: 698,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,972.40 : 763,458.60 = 465,426.80 : x
  2. Step 2: Convert to fraction form
    508,972.40/763,458.60 = 465,426.80/x
  3. Step 3: Cross multiply
    508,972.40x = 763,458.60 × 465,426.80
  4. Step 4: Simplify right side
    508,972.40x = 355,334,093,130.48
  5. Step 5: Solve for x
    x = 355,334,093,130.48/508,972.40
  6. Step 6: Final answer
    x = 698,140.20

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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.