Home / 785,430.60-1,178,145.90-727,693.80

Finding the Fourth Proportional to 785,430.60, 1,178,145.90 and 727,693.80

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Solution

The fourth proportional to 785,430.60, 1,178,145.90 and 727,693.80 is: 1,091,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,430.60 : 1,178,145.90 = 727,693.80 : x
  2. Step 2: Convert to fraction form
    785,430.60/1,178,145.90 = 727,693.80/x
  3. Step 3: Cross multiply
    785,430.60x = 1,178,145.90 × 727,693.80
  4. Step 4: Simplify right side
    785,430.60x = 857,329,466,925.42
  5. Step 5: Solve for x
    x = 857,329,466,925.42/785,430.60
  6. Step 6: Final answer
    x = 1,091,540.70

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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.