Home / 1,020,225.20-1,530,337.80-862,761.20

Finding the Fourth Proportional to 1,020,225.20, 1,530,337.80 and 862,761.20

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Solution

The fourth proportional to 1,020,225.20, 1,530,337.80 and 862,761.20 is: 1,294,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,225.20 : 1,530,337.80 = 862,761.20 : x
  2. Step 2: Convert to fraction form
    1,020,225.20/1,530,337.80 = 862,761.20/x
  3. Step 3: Cross multiply
    1,020,225.20x = 1,530,337.80 × 862,761.20
  4. Step 4: Simplify right side
    1,020,225.20x = 1,320,316,076,733.36
  5. Step 5: Solve for x
    x = 1,320,316,076,733.36/1,020,225.20
  6. Step 6: Final answer
    x = 1,294,141.80

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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.