Home / 1,335,356.51-1,842,120.09-876,407.40

Finding the Fourth Proportional to 1,335,356.51, 1,842,120.09 and 876,407.40

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Solution

The fourth proportional to 1,335,356.51, 1,842,120.09 and 876,407.40 is: 1,209,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,356.51 : 1,842,120.09 = 876,407.40 : x
  2. Step 2: Convert to fraction form
    1,335,356.51/1,842,120.09 = 876,407.40/x
  3. Step 3: Cross multiply
    1,335,356.51x = 1,842,120.09 × 876,407.40
  4. Step 4: Simplify right side
    1,335,356.51x = 1,614,447,678,564.67
  5. Step 5: Solve for x
    x = 1,614,447,678,564.67/1,335,356.51
  6. Step 6: Final answer
    x = 1,209,001.25

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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.