Home / 478,927.06-717,577.62-288,988.30

Finding the Fourth Proportional to 478,927.06, 717,577.62 and 288,988.30

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Solution

The fourth proportional to 478,927.06, 717,577.62 and 288,988.30 is: 432,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,927.06 : 717,577.62 = 288,988.30 : x
  2. Step 2: Convert to fraction form
    478,927.06/717,577.62 = 288,988.30/x
  3. Step 3: Cross multiply
    478,927.06x = 717,577.62 × 288,988.30
  4. Step 4: Simplify right side
    478,927.06x = 207,371,537,964.11
  5. Step 5: Solve for x
    x = 207,371,537,964.11/478,927.06
  6. Step 6: Final answer
    x = 432,991.90

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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.