Home / 2,988,986.30-4,124,460.47-1,681,985.89

Finding the Fourth Proportional to 2,988,986.30, 4,124,460.47 and 1,681,985.89

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Solution

The fourth proportional to 2,988,986.30, 4,124,460.47 and 1,681,985.89 is: 2,320,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988,986.30 : 4,124,460.47 = 1,681,985.89 : x
  2. Step 2: Convert to fraction form
    2,988,986.30/4,124,460.47 = 1,681,985.89/x
  3. Step 3: Cross multiply
    2,988,986.30x = 4,124,460.47 × 1,681,985.89
  4. Step 4: Simplify right side
    2,988,986.30x = 6,937,284,314,402.77
  5. Step 5: Solve for x
    x = 6,937,284,314,402.77/2,988,986.30
  6. Step 6: Final answer
    x = 2,320,948.85

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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.