Home / 679,753.97-938,041.74-373,830.34

Finding the Fourth Proportional to 679,753.97, 938,041.74 and 373,830.34

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Solution

The fourth proportional to 679,753.97, 938,041.74 and 373,830.34 is: 515,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,753.97 : 938,041.74 = 373,830.34 : x
  2. Step 2: Convert to fraction form
    679,753.97/938,041.74 = 373,830.34/x
  3. Step 3: Cross multiply
    679,753.97x = 938,041.74 × 373,830.34
  4. Step 4: Simplify right side
    679,753.97x = 350,668,465,701.76
  5. Step 5: Solve for x
    x = 350,668,465,701.76/679,753.97
  6. Step 6: Final answer
    x = 515,875.57

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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.