Home / 1,145,123.40-1,718,341.20-435,660.60

Finding the Fourth Proportional to 1,145,123.40, 1,718,341.20 and 435,660.60

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Solution

The fourth proportional to 1,145,123.40, 1,718,341.20 and 435,660.60 is: 653,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,123.40 : 1,718,341.20 = 435,660.60 : x
  2. Step 2: Convert to fraction form
    1,145,123.40/1,718,341.20 = 435,660.60/x
  3. Step 3: Cross multiply
    1,145,123.40x = 1,718,341.20 × 435,660.60
  4. Step 4: Simplify right side
    1,145,123.40x = 748,613,558,196.72
  5. Step 5: Solve for x
    x = 748,613,558,196.72/1,145,123.40
  6. Step 6: Final answer
    x = 653,740.51

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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.