Home / 641,938.32-885,864.03-355,452.24

Finding the Fourth Proportional to 641,938.32, 885,864.03 and 355,452.24

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Solution

The fourth proportional to 641,938.32, 885,864.03 and 355,452.24 is: 490,518.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,938.32 : 885,864.03 = 355,452.24 : x
  2. Step 2: Convert to fraction form
    641,938.32/885,864.03 = 355,452.24/x
  3. Step 3: Cross multiply
    641,938.32x = 885,864.03 × 355,452.24
  4. Step 4: Simplify right side
    641,938.32x = 314,882,353,798.93
  5. Step 5: Solve for x
    x = 314,882,353,798.93/641,938.32
  6. Step 6: Final answer
    x = 490,518.08

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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.