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Finding the Fourth Proportional to 559,931.52, 772,462.56 and 355,873.28

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Solution

The fourth proportional to 559,931.52, 772,462.56 and 355,873.28 is: 490,950.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,931.52 : 772,462.56 = 355,873.28 : x
  2. Step 2: Convert to fraction form
    559,931.52/772,462.56 = 355,873.28/x
  3. Step 3: Cross multiply
    559,931.52x = 772,462.56 × 355,873.28
  4. Step 4: Simplify right side
    559,931.52x = 274,898,784,904.40
  5. Step 5: Solve for x
    x = 274,898,784,904.40/559,931.52
  6. Step 6: Final answer
    x = 490,950.72

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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.