Home / 487,549.43-672,547.43-283,577.39

Finding the Fourth Proportional to 487,549.43, 672,547.43 and 283,577.39

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Solution

The fourth proportional to 487,549.43, 672,547.43 and 283,577.39 is: 391,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,549.43 : 672,547.43 = 283,577.39 : x
  2. Step 2: Convert to fraction form
    487,549.43/672,547.43 = 283,577.39/x
  3. Step 3: Cross multiply
    487,549.43x = 672,547.43 × 283,577.39
  4. Step 4: Simplify right side
    487,549.43x = 190,719,243,432.72
  5. Step 5: Solve for x
    x = 190,719,243,432.72/487,549.43
  6. Step 6: Final answer
    x = 391,179.30

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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.