Home / 1,018,990.50-1,403,776.50-712,493.40

Finding the Fourth Proportional to 1,018,990.50, 1,403,776.50 and 712,493.40

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Solution

The fourth proportional to 1,018,990.50, 1,403,776.50 and 712,493.40 is: 981,541.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,990.50 : 1,403,776.50 = 712,493.40 : x
  2. Step 2: Convert to fraction form
    1,018,990.50/1,403,776.50 = 712,493.40/x
  3. Step 3: Cross multiply
    1,018,990.50x = 1,403,776.50 × 712,493.40
  4. Step 4: Simplify right side
    1,018,990.50x = 1,000,181,491,325.10
  5. Step 5: Solve for x
    x = 1,000,181,491,325.10/1,018,990.50
  6. Step 6: Final answer
    x = 981,541.53

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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.