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Finding the Fourth Proportional to 525,000.29, 724,554.72 and 321,186.87

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Solution

The fourth proportional to 525,000.29, 724,554.72 and 321,186.87 is: 443,271.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,000.29 : 724,554.72 = 321,186.87 : x
  2. Step 2: Convert to fraction form
    525,000.29/724,554.72 = 321,186.87/x
  3. Step 3: Cross multiply
    525,000.29x = 724,554.72 × 321,186.87
  4. Step 4: Simplify right side
    525,000.29x = 232,717,462,660.53
  5. Step 5: Solve for x
    x = 232,717,462,660.53/525,000.29
  6. Step 6: Final answer
    x = 443,271.12

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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.