Home / 743,320.80-1,114,981.20-477,600.30

Finding the Fourth Proportional to 743,320.80, 1,114,981.20 and 477,600.30

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Solution

The fourth proportional to 743,320.80, 1,114,981.20 and 477,600.30 is: 716,400.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,320.80 : 1,114,981.20 = 477,600.30 : x
  2. Step 2: Convert to fraction form
    743,320.80/1,114,981.20 = 477,600.30/x
  3. Step 3: Cross multiply
    743,320.80x = 1,114,981.20 × 477,600.30
  4. Step 4: Simplify right side
    743,320.80x = 532,515,355,614.36
  5. Step 5: Solve for x
    x = 532,515,355,614.36/743,320.80
  6. Step 6: Final answer
    x = 716,400.45

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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.