Home / 1,020,878.20-1,529,762.10-862,247.80

Finding the Fourth Proportional to 1,020,878.20, 1,529,762.10 and 862,247.80

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Solution

The fourth proportional to 1,020,878.20, 1,529,762.10 and 862,247.80 is: 1,292,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,878.20 : 1,529,762.10 = 862,247.80 : x
  2. Step 2: Convert to fraction form
    1,020,878.20/1,529,762.10 = 862,247.80/x
  3. Step 3: Cross multiply
    1,020,878.20x = 1,529,762.10 × 862,247.80
  4. Step 4: Simplify right side
    1,020,878.20x = 1,319,034,005,248.38
  5. Step 5: Solve for x
    x = 1,319,034,005,248.38/1,020,878.20
  6. Step 6: Final answer
    x = 1,292,058.16

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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.