Home / 487,172.26-672,298.55-272,312.13

Finding the Fourth Proportional to 487,172.26, 672,298.55 and 272,312.13

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Solution

The fourth proportional to 487,172.26, 672,298.55 and 272,312.13 is: 375,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,172.26 : 672,298.55 = 272,312.13 : x
  2. Step 2: Convert to fraction form
    487,172.26/672,298.55 = 272,312.13/x
  3. Step 3: Cross multiply
    487,172.26x = 672,298.55 × 272,312.13
  4. Step 4: Simplify right side
    487,172.26x = 183,075,050,146.41
  5. Step 5: Solve for x
    x = 183,075,050,146.41/487,172.26
  6. Step 6: Final answer
    x = 375,791.20

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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.