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Finding the Fourth Proportional to 487,952.35, 672,901.86 and 380,483.17

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Solution

The fourth proportional to 487,952.35, 672,901.86 and 380,483.17 is: 524,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,952.35 : 672,901.86 = 380,483.17 : x
  2. Step 2: Convert to fraction form
    487,952.35/672,901.86 = 380,483.17/x
  3. Step 3: Cross multiply
    487,952.35x = 672,901.86 × 380,483.17
  4. Step 4: Simplify right side
    487,952.35x = 256,027,833,111.00
  5. Step 5: Solve for x
    x = 256,027,833,111.00/487,952.35
  6. Step 6: Final answer
    x = 524,698.43

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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.