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Finding the Fourth Proportional to 680,114.28, 938,538.24 and 370,007.10

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Solution

The fourth proportional to 680,114.28, 938,538.24 and 370,007.10 is: 510,599.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,114.28 : 938,538.24 = 370,007.10 : x
  2. Step 2: Convert to fraction form
    680,114.28/938,538.24 = 370,007.10/x
  3. Step 3: Cross multiply
    680,114.28x = 938,538.24 × 370,007.10
  4. Step 4: Simplify right side
    680,114.28x = 347,265,812,421.50
  5. Step 5: Solve for x
    x = 347,265,812,421.50/680,114.28
  6. Step 6: Final answer
    x = 510,599.21

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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.