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Finding the Fourth Proportional to 540,290.88, 745,630.12 and 310,883.04

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Solution

The fourth proportional to 540,290.88, 745,630.12 and 310,883.04 is: 429,035.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,290.88 : 745,630.12 = 310,883.04 : x
  2. Step 2: Convert to fraction form
    540,290.88/745,630.12 = 310,883.04/x
  3. Step 3: Cross multiply
    540,290.88x = 745,630.12 × 310,883.04
  4. Step 4: Simplify right side
    540,290.88x = 231,803,758,421.17
  5. Step 5: Solve for x
    x = 231,803,758,421.17/540,290.88
  6. Step 6: Final answer
    x = 429,035.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.