Home / 835,428-1,253,140.08-302,947.92

Finding the Fourth Proportional to 835,428, 1,253,140.08 and 302,947.92

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Solution

The fourth proportional to 835,428, 1,253,140.08 and 302,947.92 is: 454,421.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,428 : 1,253,140.08 = 302,947.92 : x
  2. Step 2: Convert to fraction form
    835,428/1,253,140.08 = 302,947.92/x
  3. Step 3: Cross multiply
    835,428x = 1,253,140.08 × 302,947.92
  4. Step 4: Simplify right side
    835,428x = 379,636,180,704.63
  5. Step 5: Solve for x
    x = 379,636,180,704.63/835,428
  6. Step 6: Final answer
    x = 454,421.18

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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.