Home / 980,740.90-1,471,111.35-349,675.30

Finding the Fourth Proportional to 980,740.90, 1,471,111.35 and 349,675.30

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Solution

The fourth proportional to 980,740.90, 1,471,111.35 and 349,675.30 is: 524,512.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,740.90 : 1,471,111.35 = 349,675.30 : x
  2. Step 2: Convert to fraction form
    980,740.90/1,471,111.35 = 349,675.30/x
  3. Step 3: Cross multiply
    980,740.90x = 1,471,111.35 × 349,675.30
  4. Step 4: Simplify right side
    980,740.90x = 514,411,302,644.66
  5. Step 5: Solve for x
    x = 514,411,302,644.66/980,740.90
  6. Step 6: Final answer
    x = 524,512.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.