Home / 1,008,013.79-1,391,058.43-555,304.79

Finding the Fourth Proportional to 1,008,013.79, 1,391,058.43 and 555,304.79

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Solution

The fourth proportional to 1,008,013.79, 1,391,058.43 and 555,304.79 is: 766,320.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,013.79 : 1,391,058.43 = 555,304.79 : x
  2. Step 2: Convert to fraction form
    1,008,013.79/1,391,058.43 = 555,304.79/x
  3. Step 3: Cross multiply
    1,008,013.79x = 1,391,058.43 × 555,304.79
  4. Step 4: Simplify right side
    1,008,013.79x = 772,461,411,438.26
  5. Step 5: Solve for x
    x = 772,461,411,438.26/1,008,013.79
  6. Step 6: Final answer
    x = 766,320.28

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1.5x scale

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.