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Finding the Fourth Proportional to 928,762.74, 1,281,707.01 and 520,955.10

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Solution

The fourth proportional to 928,762.74, 1,281,707.01 and 520,955.10 is: 718,926.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,762.74 : 1,281,707.01 = 520,955.10 : x
  2. Step 2: Convert to fraction form
    928,762.74/1,281,707.01 = 520,955.10/x
  3. Step 3: Cross multiply
    928,762.74x = 1,281,707.01 × 520,955.10
  4. Step 4: Simplify right side
    928,762.74x = 667,711,803,565.25
  5. Step 5: Solve for x
    x = 667,711,803,565.25/928,762.74
  6. Step 6: Final answer
    x = 718,926.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.