Home / 770,661.12-1,154,941.20-371,272.80

Finding the Fourth Proportional to 770,661.12, 1,154,941.20 and 371,272.80

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Solution

The fourth proportional to 770,661.12, 1,154,941.20 and 371,272.80 is: 556,403.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,661.12 : 1,154,941.20 = 371,272.80 : x
  2. Step 2: Convert to fraction form
    770,661.12/1,154,941.20 = 371,272.80/x
  3. Step 3: Cross multiply
    770,661.12x = 1,154,941.20 × 371,272.80
  4. Step 4: Simplify right side
    770,661.12x = 428,798,253,159.36
  5. Step 5: Solve for x
    x = 428,798,253,159.36/770,661.12
  6. Step 6: Final answer
    x = 556,403.12

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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.