Home / 898,476.59-1,239,888.16-490,577.15

Finding the Fourth Proportional to 898,476.59, 1,239,888.16 and 490,577.15

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Solution

The fourth proportional to 898,476.59, 1,239,888.16 and 490,577.15 is: 676,991.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,476.59 : 1,239,888.16 = 490,577.15 : x
  2. Step 2: Convert to fraction form
    898,476.59/1,239,888.16 = 490,577.15/x
  3. Step 3: Cross multiply
    898,476.59x = 1,239,888.16 × 490,577.15
  4. Step 4: Simplify right side
    898,476.59x = 608,260,799,851.54
  5. Step 5: Solve for x
    x = 608,260,799,851.54/898,476.59
  6. Step 6: Final answer
    x = 676,991.26

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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.