Home / 487,277.93-672,445.04-272,418

Finding the Fourth Proportional to 487,277.93, 672,445.04 and 272,418

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Solution

The fourth proportional to 487,277.93, 672,445.04 and 272,418 is: 375,937.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,277.93 : 672,445.04 = 272,418 : x
  2. Step 2: Convert to fraction form
    487,277.93/672,445.04 = 272,418/x
  3. Step 3: Cross multiply
    487,277.93x = 672,445.04 × 272,418
  4. Step 4: Simplify right side
    487,277.93x = 183,186,131,544.63
  5. Step 5: Solve for x
    x = 183,186,131,544.63/487,277.93
  6. Step 6: Final answer
    x = 375,937.68

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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.