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Finding the Fourth Proportional to 488,312.90, 732,901.35 and 288,383.30

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Solution

The fourth proportional to 488,312.90, 732,901.35 and 288,383.30 is: 432,830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,312.90 : 732,901.35 = 288,383.30 : x
  2. Step 2: Convert to fraction form
    488,312.90/732,901.35 = 288,383.30/x
  3. Step 3: Cross multiply
    488,312.90x = 732,901.35 × 288,383.30
  4. Step 4: Simplify right side
    488,312.90x = 211,356,509,887.46
  5. Step 5: Solve for x
    x = 211,356,509,887.46/488,312.90
  6. Step 6: Final answer
    x = 432,830.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.