Home / 913,707.20-1,260,931.20-500,280.08

Finding the Fourth Proportional to 913,707.20, 1,260,931.20 and 500,280.08

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Solution

The fourth proportional to 913,707.20, 1,260,931.20 and 500,280.08 is: 690,394.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,707.20 : 1,260,931.20 = 500,280.08 : x
  2. Step 2: Convert to fraction form
    913,707.20/1,260,931.20 = 500,280.08/x
  3. Step 3: Cross multiply
    913,707.20x = 1,260,931.20 × 500,280.08
  4. Step 4: Simplify right side
    913,707.20x = 630,818,761,610.50
  5. Step 5: Solve for x
    x = 630,818,761,610.50/913,707.20
  6. Step 6: Final answer
    x = 690,394.87

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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.