Home / 1,138,264.80-1,570,895.04-648,255.16

Finding the Fourth Proportional to 1,138,264.80, 1,570,895.04 and 648,255.16

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Solution

The fourth proportional to 1,138,264.80, 1,570,895.04 and 648,255.16 is: 894,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,264.80 : 1,570,895.04 = 648,255.16 : x
  2. Step 2: Convert to fraction form
    1,138,264.80/1,570,895.04 = 648,255.16/x
  3. Step 3: Cross multiply
    1,138,264.80x = 1,570,895.04 × 648,255.16
  4. Step 4: Simplify right side
    1,138,264.80x = 1,018,340,815,498.41
  5. Step 5: Solve for x
    x = 1,018,340,815,498.41/1,138,264.80
  6. Step 6: Final answer
    x = 894,643.16

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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.