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Finding the Fourth Proportional to 710,507.27, 980,513.23 and 388,238.24

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Solution

The fourth proportional to 710,507.27, 980,513.23 and 388,238.24 is: 535,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,507.27 : 980,513.23 = 388,238.24 : x
  2. Step 2: Convert to fraction form
    710,507.27/980,513.23 = 388,238.24/x
  3. Step 3: Cross multiply
    710,507.27x = 980,513.23 × 388,238.24
  4. Step 4: Simplify right side
    710,507.27x = 380,672,730,711.92
  5. Step 5: Solve for x
    x = 380,672,730,711.92/710,507.27
  6. Step 6: Final answer
    x = 535,775.98

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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.