Home / 487,434.53-672,678.02-272,574.11

Finding the Fourth Proportional to 487,434.53, 672,678.02 and 272,574.11

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Solution

The fourth proportional to 487,434.53, 672,678.02 and 272,574.11 is: 376,162.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,434.53 : 672,678.02 = 272,574.11 : x
  2. Step 2: Convert to fraction form
    487,434.53/672,678.02 = 272,574.11/x
  3. Step 3: Cross multiply
    487,434.53x = 672,678.02 × 272,574.11
  4. Step 4: Simplify right side
    487,434.53x = 183,354,612,618.06
  5. Step 5: Solve for x
    x = 183,354,612,618.06/487,434.53
  6. Step 6: Final answer
    x = 376,162.54

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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.