Home / 1,018,879.20-1,528,318.80-924,400.80

Finding the Fourth Proportional to 1,018,879.20, 1,528,318.80 and 924,400.80

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Solution

The fourth proportional to 1,018,879.20, 1,528,318.80 and 924,400.80 is: 1,386,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,879.20 : 1,528,318.80 = 924,400.80 : x
  2. Step 2: Convert to fraction form
    1,018,879.20/1,528,318.80 = 924,400.80/x
  3. Step 3: Cross multiply
    1,018,879.20x = 1,528,318.80 × 924,400.80
  4. Step 4: Simplify right side
    1,018,879.20x = 1,412,779,121,375.04
  5. Step 5: Solve for x
    x = 1,412,779,121,375.04/1,018,879.20
  6. Step 6: Final answer
    x = 1,386,601.20

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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.