Home / 858,412.60-1,287,618.90-503,596.60

Finding the Fourth Proportional to 858,412.60, 1,287,618.90 and 503,596.60

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Solution

The fourth proportional to 858,412.60, 1,287,618.90 and 503,596.60 is: 755,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,412.60 : 1,287,618.90 = 503,596.60 : x
  2. Step 2: Convert to fraction form
    858,412.60/1,287,618.90 = 503,596.60/x
  3. Step 3: Cross multiply
    858,412.60x = 1,287,618.90 × 503,596.60
  4. Step 4: Simplify right side
    858,412.60x = 648,440,500,135.74
  5. Step 5: Solve for x
    x = 648,440,500,135.74/858,412.60
  6. Step 6: Final answer
    x = 755,394.90

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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.