Home / 913,311.40-1,369,967.10-493,407.40

Finding the Fourth Proportional to 913,311.40, 1,369,967.10 and 493,407.40

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Solution

The fourth proportional to 913,311.40, 1,369,967.10 and 493,407.40 is: 740,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,311.40 : 1,369,967.10 = 493,407.40 : x
  2. Step 2: Convert to fraction form
    913,311.40/1,369,967.10 = 493,407.40/x
  3. Step 3: Cross multiply
    913,311.40x = 1,369,967.10 × 493,407.40
  4. Step 4: Simplify right side
    913,311.40x = 675,951,904,896.54
  5. Step 5: Solve for x
    x = 675,951,904,896.54/913,311.40
  6. Step 6: Final answer
    x = 740,111.10

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Similar ratio
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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.