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Finding the Fourth Proportional to 622,875.60, 933,730.20 and 487,864.80

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Solution

The fourth proportional to 622,875.60, 933,730.20 and 487,864.80 is: 731,340.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,875.60 : 933,730.20 = 487,864.80 : x
  2. Step 2: Convert to fraction form
    622,875.60/933,730.20 = 487,864.80/x
  3. Step 3: Cross multiply
    622,875.60x = 933,730.20 × 487,864.80
  4. Step 4: Simplify right side
    622,875.60x = 455,534,097,276.96
  5. Step 5: Solve for x
    x = 455,534,097,276.96/622,875.60
  6. Step 6: Final answer
    x = 731,340.41

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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.