Home / 787,880.52-1,087,268.40-448,367.40

Finding the Fourth Proportional to 787,880.52, 1,087,268.40 and 448,367.40

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Solution

The fourth proportional to 787,880.52, 1,087,268.40 and 448,367.40 is: 618,743.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,880.52 : 1,087,268.40 = 448,367.40 : x
  2. Step 2: Convert to fraction form
    787,880.52/1,087,268.40 = 448,367.40/x
  3. Step 3: Cross multiply
    787,880.52x = 1,087,268.40 × 448,367.40
  4. Step 4: Simplify right side
    787,880.52x = 487,495,705,610.16
  5. Step 5: Solve for x
    x = 487,495,705,610.16/787,880.52
  6. Step 6: Final answer
    x = 618,743.19

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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.