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Finding the Fourth Proportional to 530,341.90, 731,888.11 and 300,908.74

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Solution

The fourth proportional to 530,341.90, 731,888.11 and 300,908.74 is: 415,263.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,341.90 : 731,888.11 = 300,908.74 : x
  2. Step 2: Convert to fraction form
    530,341.90/731,888.11 = 300,908.74/x
  3. Step 3: Cross multiply
    530,341.90x = 731,888.11 × 300,908.74
  4. Step 4: Simplify right side
    530,341.90x = 220,231,527,227.18
  5. Step 5: Solve for x
    x = 220,231,527,227.18/530,341.90
  6. Step 6: Final answer
    x = 415,263.30

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1.5x scale

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.