Home / 740,070.80-1,109,717.40-266,685.20

Finding the Fourth Proportional to 740,070.80, 1,109,717.40 and 266,685.20

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Solution

The fourth proportional to 740,070.80, 1,109,717.40 and 266,685.20 is: 399,887.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,070.80 : 1,109,717.40 = 266,685.20 : x
  2. Step 2: Convert to fraction form
    740,070.80/1,109,717.40 = 266,685.20/x
  3. Step 3: Cross multiply
    740,070.80x = 1,109,717.40 × 266,685.20
  4. Step 4: Simplify right side
    740,070.80x = 295,945,206,762.48
  5. Step 5: Solve for x
    x = 295,945,206,762.48/740,070.80
  6. Step 6: Final answer
    x = 399,887.70

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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.