Home / 429,861.28-645,290.07-230,570.92

Finding the Fourth Proportional to 429,861.28, 645,290.07 and 230,570.92

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Solution

The fourth proportional to 429,861.28, 645,290.07 and 230,570.92 is: 346,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,861.28 : 645,290.07 = 230,570.92 : x
  2. Step 2: Convert to fraction form
    429,861.28/645,290.07 = 230,570.92/x
  3. Step 3: Cross multiply
    429,861.28x = 645,290.07 × 230,570.92
  4. Step 4: Simplify right side
    429,861.28x = 148,785,125,106.76
  5. Step 5: Solve for x
    x = 148,785,125,106.76/429,861.28
  6. Step 6: Final answer
    x = 346,123.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.