Home / 788,398.16-1,087,989.12-425,821.88

Finding the Fourth Proportional to 788,398.16, 1,087,989.12 and 425,821.88

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Solution

The fourth proportional to 788,398.16, 1,087,989.12 and 425,821.88 is: 587,634.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,398.16 : 1,087,989.12 = 425,821.88 : x
  2. Step 2: Convert to fraction form
    788,398.16/1,087,989.12 = 425,821.88/x
  3. Step 3: Cross multiply
    788,398.16x = 1,087,989.12 × 425,821.88
  4. Step 4: Simplify right side
    788,398.16x = 463,289,572,497.95
  5. Step 5: Solve for x
    x = 463,289,572,497.95/788,398.16
  6. Step 6: Final answer
    x = 587,634.01

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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.