Home / 750,681.13-1,036,014.47-428,440.04

Finding the Fourth Proportional to 750,681.13, 1,036,014.47 and 428,440.04

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Solution

The fourth proportional to 750,681.13, 1,036,014.47 and 428,440.04 is: 591,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,681.13 : 1,036,014.47 = 428,440.04 : x
  2. Step 2: Convert to fraction form
    750,681.13/1,036,014.47 = 428,440.04/x
  3. Step 3: Cross multiply
    750,681.13x = 1,036,014.47 × 428,440.04
  4. Step 4: Simplify right side
    750,681.13x = 443,870,080,967.38
  5. Step 5: Solve for x
    x = 443,870,080,967.38/750,681.13
  6. Step 6: Final answer
    x = 591,289.78

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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.