Home / 709,827-1,064,215.62-429,281.88

Finding the Fourth Proportional to 709,827, 1,064,215.62 and 429,281.88

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Solution

The fourth proportional to 709,827, 1,064,215.62 and 429,281.88 is: 643,605.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,827 : 1,064,215.62 = 429,281.88 : x
  2. Step 2: Convert to fraction form
    709,827/1,064,215.62 = 429,281.88/x
  3. Step 3: Cross multiply
    709,827x = 1,064,215.62 × 429,281.88
  4. Step 4: Simplify right side
    709,827x = 456,848,482,078.97
  5. Step 5: Solve for x
    x = 456,848,482,078.97/709,827
  6. Step 6: Final answer
    x = 643,605.39

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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.