Home / 1,439,612.32-2,160,746.90-730,138.60

Finding the Fourth Proportional to 1,439,612.32, 2,160,746.90 and 730,138.60

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Solution

The fourth proportional to 1,439,612.32, 2,160,746.90 and 730,138.60 is: 1,095,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,612.32 : 2,160,746.90 = 730,138.60 : x
  2. Step 2: Convert to fraction form
    1,439,612.32/2,160,746.90 = 730,138.60/x
  3. Step 3: Cross multiply
    1,439,612.32x = 2,160,746.90 × 730,138.60
  4. Step 4: Simplify right side
    1,439,612.32x = 1,577,644,716,520.34
  5. Step 5: Solve for x
    x = 1,577,644,716,520.34/1,439,612.32
  6. Step 6: Final answer
    x = 1,095,881.64

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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.