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Finding the Fourth Proportional to 488,230.94, 732,079.43 and 387,674.93

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Solution

The fourth proportional to 488,230.94, 732,079.43 and 387,674.93 is: 581,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,230.94 : 732,079.43 = 387,674.93 : x
  2. Step 2: Convert to fraction form
    488,230.94/732,079.43 = 387,674.93/x
  3. Step 3: Cross multiply
    488,230.94x = 732,079.43 × 387,674.93
  4. Step 4: Simplify right side
    488,230.94x = 283,808,838,980.30
  5. Step 5: Solve for x
    x = 283,808,838,980.30/488,230.94
  6. Step 6: Final answer
    x = 581,300.40

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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.