Home / 430,905.40-646,358.10-244,281.40

Finding the Fourth Proportional to 430,905.40, 646,358.10 and 244,281.40

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Solution

The fourth proportional to 430,905.40, 646,358.10 and 244,281.40 is: 366,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,905.40 : 646,358.10 = 244,281.40 : x
  2. Step 2: Convert to fraction form
    430,905.40/646,358.10 = 244,281.40/x
  3. Step 3: Cross multiply
    430,905.40x = 646,358.10 × 244,281.40
  4. Step 4: Simplify right side
    430,905.40x = 157,893,261,569.34
  5. Step 5: Solve for x
    x = 157,893,261,569.34/430,905.40
  6. Step 6: Final answer
    x = 366,422.10

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Similar ratio
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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.