Home / 409,820.40-614,730.60-290,246.18

Finding the Fourth Proportional to 409,820.40, 614,730.60 and 290,246.18

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Solution

The fourth proportional to 409,820.40, 614,730.60 and 290,246.18 is: 435,369.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,820.40 : 614,730.60 = 290,246.18 : x
  2. Step 2: Convert to fraction form
    409,820.40/614,730.60 = 290,246.18/x
  3. Step 3: Cross multiply
    409,820.40x = 614,730.60 × 290,246.18
  4. Step 4: Simplify right side
    409,820.40x = 178,423,205,305.46
  5. Step 5: Solve for x
    x = 178,423,205,305.46/409,820.40
  6. Step 6: Final answer
    x = 435,369.26

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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.