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Finding the Fourth Proportional to 710,592.50, 980,576.33 and 388,305.24

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Solution

The fourth proportional to 710,592.50, 980,576.33 and 388,305.24 is: 535,838.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,592.50 : 980,576.33 = 388,305.24 : x
  2. Step 2: Convert to fraction form
    710,592.50/980,576.33 = 388,305.24/x
  3. Step 3: Cross multiply
    710,592.50x = 980,576.33 × 388,305.24
  4. Step 4: Simplify right side
    710,592.50x = 380,762,925,217.44
  5. Step 5: Solve for x
    x = 380,762,925,217.44/710,592.50
  6. Step 6: Final answer
    x = 535,838.65

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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.