Home / 1,008,144.96-1,391,240.16-555,432

Finding the Fourth Proportional to 1,008,144.96, 1,391,240.16 and 555,432

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Solution

The fourth proportional to 1,008,144.96, 1,391,240.16 and 555,432 is: 766,496.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,144.96 : 1,391,240.16 = 555,432 : x
  2. Step 2: Convert to fraction form
    1,008,144.96/1,391,240.16 = 555,432/x
  3. Step 3: Cross multiply
    1,008,144.96x = 1,391,240.16 × 555,432
  4. Step 4: Simplify right side
    1,008,144.96x = 772,739,304,549.12
  5. Step 5: Solve for x
    x = 772,739,304,549.12/1,008,144.96
  6. Step 6: Final answer
    x = 766,496.22

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1.5x scale

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.