Home / 1,381,432.90-2,072,429.60-434,583.40

Finding the Fourth Proportional to 1,381,432.90, 2,072,429.60 and 434,583.40

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Solution

The fourth proportional to 1,381,432.90, 2,072,429.60 and 434,583.40 is: 651,963.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,432.90 : 2,072,429.60 = 434,583.40 : x
  2. Step 2: Convert to fraction form
    1,381,432.90/2,072,429.60 = 434,583.40/x
  3. Step 3: Cross multiply
    1,381,432.90x = 2,072,429.60 × 434,583.40
  4. Step 4: Simplify right side
    1,381,432.90x = 900,643,501,828.64
  5. Step 5: Solve for x
    x = 900,643,501,828.64/1,381,432.90
  6. Step 6: Final answer
    x = 651,963.26

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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.