Home / 858,760.60-1,288,140.90-740,565.40

Finding the Fourth Proportional to 858,760.60, 1,288,140.90 and 740,565.40

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Solution

The fourth proportional to 858,760.60, 1,288,140.90 and 740,565.40 is: 1,110,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,760.60 : 1,288,140.90 = 740,565.40 : x
  2. Step 2: Convert to fraction form
    858,760.60/1,288,140.90 = 740,565.40/x
  3. Step 3: Cross multiply
    858,760.60x = 1,288,140.90 × 740,565.40
  4. Step 4: Simplify right side
    858,760.60x = 953,952,580,864.86
  5. Step 5: Solve for x
    x = 953,952,580,864.86/858,760.60
  6. Step 6: Final answer
    x = 1,110,848.10

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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.