Home / 1,108,490.15-1,530,129.95-862,988.46

Finding the Fourth Proportional to 1,108,490.15, 1,530,129.95 and 862,988.46

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Solution

The fourth proportional to 1,108,490.15, 1,530,129.95 and 862,988.46 is: 1,191,246.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,490.15 : 1,530,129.95 = 862,988.46 : x
  2. Step 2: Convert to fraction form
    1,108,490.15/1,530,129.95 = 862,988.46/x
  3. Step 3: Cross multiply
    1,108,490.15x = 1,530,129.95 × 862,988.46
  4. Step 4: Simplify right side
    1,108,490.15x = 1,320,484,484,835.43
  5. Step 5: Solve for x
    x = 1,320,484,484,835.43/1,108,490.15
  6. Step 6: Final answer
    x = 1,191,246.03

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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.