Home / 1,077,432.36-1,487,032.20-648,146.40

Finding the Fourth Proportional to 1,077,432.36, 1,487,032.20 and 648,146.40

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Solution

The fourth proportional to 1,077,432.36, 1,487,032.20 and 648,146.40 is: 894,547.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,432.36 : 1,487,032.20 = 648,146.40 : x
  2. Step 2: Convert to fraction form
    1,077,432.36/1,487,032.20 = 648,146.40/x
  3. Step 3: Cross multiply
    1,077,432.36x = 1,487,032.20 × 648,146.40
  4. Step 4: Simplify right side
    1,077,432.36x = 963,814,567,114.08
  5. Step 5: Solve for x
    x = 963,814,567,114.08/1,077,432.36
  6. Step 6: Final answer
    x = 894,547.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.