Home / 1,018,965.50-1,404,690.38-712,089.12

Finding the Fourth Proportional to 1,018,965.50, 1,404,690.38 and 712,089.12

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Solution

The fourth proportional to 1,018,965.50, 1,404,690.38 and 712,089.12 is: 981,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,965.50 : 1,404,690.38 = 712,089.12 : x
  2. Step 2: Convert to fraction form
    1,018,965.50/1,404,690.38 = 712,089.12/x
  3. Step 3: Cross multiply
    1,018,965.50x = 1,404,690.38 × 712,089.12
  4. Step 4: Simplify right side
    1,018,965.50x = 1,000,264,736,566.67
  5. Step 5: Solve for x
    x = 1,000,264,736,566.67/1,018,965.50
  6. Step 6: Final answer
    x = 981,647.30

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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.