Home / 1,153,385.72-1,591,685.65-637,128.91

Finding the Fourth Proportional to 1,153,385.72, 1,591,685.65 and 637,128.91

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Solution

The fourth proportional to 1,153,385.72, 1,591,685.65 and 637,128.91 is: 879,245.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,385.72 : 1,591,685.65 = 637,128.91 : x
  2. Step 2: Convert to fraction form
    1,153,385.72/1,591,685.65 = 637,128.91/x
  3. Step 3: Cross multiply
    1,153,385.72x = 1,591,685.65 × 637,128.91
  4. Step 4: Simplify right side
    1,153,385.72x = 1,014,108,944,040.71
  5. Step 5: Solve for x
    x = 1,014,108,944,040.71/1,153,385.72
  6. Step 6: Final answer
    x = 879,245.28

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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.