Home / 858,864.60-1,288,296.90-503,695.80

Finding the Fourth Proportional to 858,864.60, 1,288,296.90 and 503,695.80

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Solution

The fourth proportional to 858,864.60, 1,288,296.90 and 503,695.80 is: 755,543.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,864.60 : 1,288,296.90 = 503,695.80 : x
  2. Step 2: Convert to fraction form
    858,864.60/1,288,296.90 = 503,695.80/x
  3. Step 3: Cross multiply
    858,864.60x = 1,288,296.90 × 503,695.80
  4. Step 4: Simplify right side
    858,864.60x = 648,909,737,683.02
  5. Step 5: Solve for x
    x = 648,909,737,683.02/858,864.60
  6. Step 6: Final answer
    x = 755,543.70

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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.