Home / 1,018,990.01-1,403,775.81-712,492.89

Finding the Fourth Proportional to 1,018,990.01, 1,403,775.81 and 712,492.89

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Solution

The fourth proportional to 1,018,990.01, 1,403,775.81 and 712,492.89 is: 981,540.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,990.01 : 1,403,775.81 = 712,492.89 : x
  2. Step 2: Convert to fraction form
    1,018,990.01/1,403,775.81 = 712,492.89/x
  3. Step 3: Cross multiply
    1,018,990.01x = 1,403,775.81 × 712,492.89
  4. Step 4: Simplify right side
    1,018,990.01x = 1,000,180,283,778.99
  5. Step 5: Solve for x
    x = 1,000,180,283,778.99/1,018,990.01
  6. Step 6: Final answer
    x = 981,540.82

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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.