Home / 1,502,141.31-2,242,285.05-1,391,129.19

Finding the Fourth Proportional to 1,502,141.31, 2,242,285.05 and 1,391,129.19

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Solution

The fourth proportional to 1,502,141.31, 2,242,285.05 and 1,391,129.19 is: 2,076,574.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502,141.31 : 2,242,285.05 = 1,391,129.19 : x
  2. Step 2: Convert to fraction form
    1,502,141.31/2,242,285.05 = 1,391,129.19/x
  3. Step 3: Cross multiply
    1,502,141.31x = 2,242,285.05 × 1,391,129.19
  4. Step 4: Simplify right side
    1,502,141.31x = 3,119,308,185,355.61
  5. Step 5: Solve for x
    x = 3,119,308,185,355.61/1,502,141.31
  6. Step 6: Final answer
    x = 2,076,574.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.