Home / 810,340.80-1,117,543.86-674,823.48

Finding the Fourth Proportional to 810,340.80, 1,117,543.86 and 674,823.48

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Solution

The fourth proportional to 810,340.80, 1,117,543.86 and 674,823.48 is: 930,651.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,340.80 : 1,117,543.86 = 674,823.48 : x
  2. Step 2: Convert to fraction form
    810,340.80/1,117,543.86 = 674,823.48/x
  3. Step 3: Cross multiply
    810,340.80x = 1,117,543.86 × 674,823.48
  4. Step 4: Simplify right side
    810,340.80x = 754,144,836,657.83
  5. Step 5: Solve for x
    x = 754,144,836,657.83/810,340.80
  6. Step 6: Final answer
    x = 930,651.45

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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.