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Finding the Fourth Proportional to 707,756.28, 977,638.44 and 524,367.42

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Solution

The fourth proportional to 707,756.28, 977,638.44 and 524,367.42 is: 724,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,756.28 : 977,638.44 = 524,367.42 : x
  2. Step 2: Convert to fraction form
    707,756.28/977,638.44 = 524,367.42/x
  3. Step 3: Cross multiply
    707,756.28x = 977,638.44 × 524,367.42
  4. Step 4: Simplify right side
    707,756.28x = 512,641,746,475.63
  5. Step 5: Solve for x
    x = 512,641,746,475.63/707,756.28
  6. Step 6: Final answer
    x = 724,319.60

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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.