Home / 750,979.76-1,036,312.44-428,677.04

Finding the Fourth Proportional to 750,979.76, 1,036,312.44 and 428,677.04

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Solution

The fourth proportional to 750,979.76, 1,036,312.44 and 428,677.04 is: 591,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,979.76 : 1,036,312.44 = 428,677.04 : x
  2. Step 2: Convert to fraction form
    750,979.76/1,036,312.44 = 428,677.04/x
  3. Step 3: Cross multiply
    750,979.76x = 1,036,312.44 × 428,677.04
  4. Step 4: Simplify right side
    750,979.76x = 444,243,349,294.38
  5. Step 5: Solve for x
    x = 444,243,349,294.38/750,979.76
  6. Step 6: Final answer
    x = 591,551.69

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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.