Home / 686,973.60-1,030,463.06-287,334.05

Finding the Fourth Proportional to 686,973.60, 1,030,463.06 and 287,334.05

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Solution

The fourth proportional to 686,973.60, 1,030,463.06 and 287,334.05 is: 431,002.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,973.60 : 1,030,463.06 = 287,334.05 : x
  2. Step 2: Convert to fraction form
    686,973.60/1,030,463.06 = 287,334.05/x
  3. Step 3: Cross multiply
    686,973.60x = 1,030,463.06 × 287,334.05
  4. Step 4: Simplify right side
    686,973.60x = 296,087,117,816.21
  5. Step 5: Solve for x
    x = 296,087,117,816.21/686,973.60
  6. Step 6: Final answer
    x = 431,002.18

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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.