Home / 730,711.20-1,095,947.28-257,285.28

Finding the Fourth Proportional to 730,711.20, 1,095,947.28 and 257,285.28

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Solution

The fourth proportional to 730,711.20, 1,095,947.28 and 257,285.28 is: 385,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,711.20 : 1,095,947.28 = 257,285.28 : x
  2. Step 2: Convert to fraction form
    730,711.20/1,095,947.28 = 257,285.28/x
  3. Step 3: Cross multiply
    730,711.20x = 1,095,947.28 × 257,285.28
  4. Step 4: Simplify right side
    730,711.20x = 281,971,102,800.04
  5. Step 5: Solve for x
    x = 281,971,102,800.04/730,711.20
  6. Step 6: Final answer
    x = 385,885.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.