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Finding the Fourth Proportional to 710,505.27, 980,510.47 and 388,236.24

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Solution

The fourth proportional to 710,505.27, 980,510.47 and 388,236.24 is: 535,773.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,505.27 : 980,510.47 = 388,236.24 : x
  2. Step 2: Convert to fraction form
    710,505.27/980,510.47 = 388,236.24/x
  3. Step 3: Cross multiply
    710,505.27x = 980,510.47 × 388,236.24
  4. Step 4: Simplify right side
    710,505.27x = 380,669,697,182.84
  5. Step 5: Solve for x
    x = 380,669,697,182.84/710,505.27
  6. Step 6: Final answer
    x = 535,773.22

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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.