Home / 784,005.40-1,176,008.10-740,459.80

Finding the Fourth Proportional to 784,005.40, 1,176,008.10 and 740,459.80

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Solution

The fourth proportional to 784,005.40, 1,176,008.10 and 740,459.80 is: 1,110,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,005.40 : 1,176,008.10 = 740,459.80 : x
  2. Step 2: Convert to fraction form
    784,005.40/1,176,008.10 = 740,459.80/x
  3. Step 3: Cross multiply
    784,005.40x = 1,176,008.10 × 740,459.80
  4. Step 4: Simplify right side
    784,005.40x = 870,786,722,524.38
  5. Step 5: Solve for x
    x = 870,786,722,524.38/784,005.40
  6. Step 6: Final answer
    x = 1,110,689.70

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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.