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Finding the Fourth Proportional to 688,608, 1,032,950.88 and 245,376

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Solution

The fourth proportional to 688,608, 1,032,950.88 and 245,376 is: 368,077.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,608 : 1,032,950.88 = 245,376 : x
  2. Step 2: Convert to fraction form
    688,608/1,032,950.88 = 245,376/x
  3. Step 3: Cross multiply
    688,608x = 1,032,950.88 × 245,376
  4. Step 4: Simplify right side
    688,608x = 253,461,355,130.88
  5. Step 5: Solve for x
    x = 253,461,355,130.88/688,608
  6. Step 6: Final answer
    x = 368,077.85

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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.