Home / 1,138,038.29-1,570,494.53-648,008.21

Finding the Fourth Proportional to 1,138,038.29, 1,570,494.53 and 648,008.21

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Solution

The fourth proportional to 1,138,038.29, 1,570,494.53 and 648,008.21 is: 894,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,038.29 : 1,570,494.53 = 648,008.21 : x
  2. Step 2: Convert to fraction form
    1,138,038.29/1,570,494.53 = 648,008.21/x
  3. Step 3: Cross multiply
    1,138,038.29x = 1,570,494.53 × 648,008.21
  4. Step 4: Simplify right side
    1,138,038.29x = 1,017,693,341,347.62
  5. Step 5: Solve for x
    x = 1,017,693,341,347.62/1,138,038.29
  6. Step 6: Final answer
    x = 894,252.29

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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.