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Finding the Fourth Proportional to 559,867.91, 772,373.99 and 355,809.47

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Solution

The fourth proportional to 559,867.91, 772,373.99 and 355,809.47 is: 490,862.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,867.91 : 772,373.99 = 355,809.47 : x
  2. Step 2: Convert to fraction form
    559,867.91/772,373.99 = 355,809.47/x
  3. Step 3: Cross multiply
    559,867.91x = 772,373.99 × 355,809.47
  4. Step 4: Simplify right side
    559,867.91x = 274,817,974,382.77
  5. Step 5: Solve for x
    x = 274,817,974,382.77/559,867.91
  6. Step 6: Final answer
    x = 490,862.17

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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.