Home / 1,138,261.80-1,570,890.90-648,252.15

Finding the Fourth Proportional to 1,138,261.80, 1,570,890.90 and 648,252.15

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Solution

The fourth proportional to 1,138,261.80, 1,570,890.90 and 648,252.15 is: 894,639.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,261.80 : 1,570,890.90 = 648,252.15 : x
  2. Step 2: Convert to fraction form
    1,138,261.80/1,570,890.90 = 648,252.15/x
  3. Step 3: Cross multiply
    1,138,261.80x = 1,570,890.90 × 648,252.15
  4. Step 4: Simplify right side
    1,138,261.80x = 1,018,333,403,340.44
  5. Step 5: Solve for x
    x = 1,018,333,403,340.44/1,138,261.80
  6. Step 6: Final answer
    x = 894,639.00

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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.