Home / 918,751.68-1,267,764.48-536,500.80

Finding the Fourth Proportional to 918,751.68, 1,267,764.48 and 536,500.80

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Solution

The fourth proportional to 918,751.68, 1,267,764.48 and 536,500.80 is: 740,305.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,751.68 : 1,267,764.48 = 536,500.80 : x
  2. Step 2: Convert to fraction form
    918,751.68/1,267,764.48 = 536,500.80/x
  3. Step 3: Cross multiply
    918,751.68x = 1,267,764.48 × 536,500.80
  4. Step 4: Simplify right side
    918,751.68x = 680,156,657,731.58
  5. Step 5: Solve for x
    x = 680,156,657,731.58/918,751.68
  6. Step 6: Final answer
    x = 740,305.21

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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.