Home / 989,331.24-1,482,993.88-390,714.11

Finding the Fourth Proportional to 989,331.24, 1,482,993.88 and 390,714.11

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Solution

The fourth proportional to 989,331.24, 1,482,993.88 and 390,714.11 is: 585,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,331.24 : 1,482,993.88 = 390,714.11 : x
  2. Step 2: Convert to fraction form
    989,331.24/1,482,993.88 = 390,714.11/x
  3. Step 3: Cross multiply
    989,331.24x = 1,482,993.88 × 390,714.11
  4. Step 4: Simplify right side
    989,331.24x = 579,426,625,567.89
  5. Step 5: Solve for x
    x = 579,426,625,567.89/989,331.24
  6. Step 6: Final answer
    x = 585,675.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.