Home / 815,275.88-1,125,113.07-471,100.40

Finding the Fourth Proportional to 815,275.88, 1,125,113.07 and 471,100.40

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Solution

The fourth proportional to 815,275.88, 1,125,113.07 and 471,100.40 is: 650,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,275.88 : 1,125,113.07 = 471,100.40 : x
  2. Step 2: Convert to fraction form
    815,275.88/1,125,113.07 = 471,100.40/x
  3. Step 3: Cross multiply
    815,275.88x = 1,125,113.07 × 471,100.40
  4. Step 4: Simplify right side
    815,275.88x = 530,041,217,322.23
  5. Step 5: Solve for x
    x = 530,041,217,322.23/815,275.88
  6. Step 6: Final answer
    x = 650,137.25

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Double scale
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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.