Home / 750,479.15-1,035,661.90-406,315.36

Finding the Fourth Proportional to 750,479.15, 1,035,661.90 and 406,315.36

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Solution

The fourth proportional to 750,479.15, 1,035,661.90 and 406,315.36 is: 560,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,479.15 : 1,035,661.90 = 406,315.36 : x
  2. Step 2: Convert to fraction form
    750,479.15/1,035,661.90 = 406,315.36/x
  3. Step 3: Cross multiply
    750,479.15x = 1,035,661.90 × 406,315.36
  4. Step 4: Simplify right side
    750,479.15x = 420,805,341,690.21
  5. Step 5: Solve for x
    x = 420,805,341,690.21/750,479.15
  6. Step 6: Final answer
    x = 560,715.57

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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.