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Finding the Fourth Proportional to 688,610, 1,032,953.88 and 245,378

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Solution

The fourth proportional to 688,610, 1,032,953.88 and 245,378 is: 368,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,610 : 1,032,953.88 = 245,378 : x
  2. Step 2: Convert to fraction form
    688,610/1,032,953.88 = 245,378/x
  3. Step 3: Cross multiply
    688,610x = 1,032,953.88 × 245,378
  4. Step 4: Simplify right side
    688,610x = 253,464,157,166.64
  5. Step 5: Solve for x
    x = 253,464,157,166.64/688,610
  6. Step 6: Final answer
    x = 368,080.85

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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.