Home / 688,408.32-1,032,842.88-351,302.40

Finding the Fourth Proportional to 688,408.32, 1,032,842.88 and 351,302.40

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Solution

The fourth proportional to 688,408.32, 1,032,842.88 and 351,302.40 is: 527,071.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,408.32 : 1,032,842.88 = 351,302.40 : x
  2. Step 2: Convert to fraction form
    688,408.32/1,032,842.88 = 351,302.40/x
  3. Step 3: Cross multiply
    688,408.32x = 1,032,842.88 × 351,302.40
  4. Step 4: Simplify right side
    688,408.32x = 362,840,182,566.91
  5. Step 5: Solve for x
    x = 362,840,182,566.91/688,408.32
  6. Step 6: Final answer
    x = 527,071.18

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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.