Home / 990,862.85-1,367,345.03-561,146.11

Finding the Fourth Proportional to 990,862.85, 1,367,345.03 and 561,146.11

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Solution

The fourth proportional to 990,862.85, 1,367,345.03 and 561,146.11 is: 774,355.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,862.85 : 1,367,345.03 = 561,146.11 : x
  2. Step 2: Convert to fraction form
    990,862.85/1,367,345.03 = 561,146.11/x
  3. Step 3: Cross multiply
    990,862.85x = 1,367,345.03 × 561,146.11
  4. Step 4: Simplify right side
    990,862.85x = 767,280,344,612.33
  5. Step 5: Solve for x
    x = 767,280,344,612.33/990,862.85
  6. Step 6: Final answer
    x = 774,355.75

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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.