Home / 487,225.08-672,350.58-283,267.35

Finding the Fourth Proportional to 487,225.08, 672,350.58 and 283,267.35

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Solution

The fourth proportional to 487,225.08, 672,350.58 and 283,267.35 is: 390,897.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,225.08 : 672,350.58 = 283,267.35 : x
  2. Step 2: Convert to fraction form
    487,225.08/672,350.58 = 283,267.35/x
  3. Step 3: Cross multiply
    487,225.08x = 672,350.58 × 283,267.35
  4. Step 4: Simplify right side
    487,225.08x = 190,454,967,067.56
  5. Step 5: Solve for x
    x = 190,454,967,067.56/487,225.08
  6. Step 6: Final answer
    x = 390,897.30

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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.