Home / 1,158,616.83-1,598,985.45-642,421.95

Finding the Fourth Proportional to 1,158,616.83, 1,598,985.45 and 642,421.95

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Solution

The fourth proportional to 1,158,616.83, 1,598,985.45 and 642,421.95 is: 886,594.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,616.83 : 1,598,985.45 = 642,421.95 : x
  2. Step 2: Convert to fraction form
    1,158,616.83/1,598,985.45 = 642,421.95/x
  3. Step 3: Cross multiply
    1,158,616.83x = 1,598,985.45 × 642,421.95
  4. Step 4: Simplify right side
    1,158,616.83x = 1,027,223,350,810.63
  5. Step 5: Solve for x
    x = 1,027,223,350,810.63/1,158,616.83
  6. Step 6: Final answer
    x = 886,594.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.