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Finding the Fourth Proportional to 549,526.47, 757,967.82 and 386,528.67

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Solution

The fourth proportional to 549,526.47, 757,967.82 and 386,528.67 is: 533,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,526.47 : 757,967.82 = 386,528.67 : x
  2. Step 2: Convert to fraction form
    549,526.47/757,967.82 = 386,528.67/x
  3. Step 3: Cross multiply
    549,526.47x = 757,967.82 × 386,528.67
  4. Step 4: Simplify right side
    549,526.47x = 292,976,293,367.40
  5. Step 5: Solve for x
    x = 292,976,293,367.40/549,526.47
  6. Step 6: Final answer
    x = 533,143.19

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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.