Home / 831,527.60-1,246,999.80-432,035.60

Finding the Fourth Proportional to 831,527.60, 1,246,999.80 and 432,035.60

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Solution

The fourth proportional to 831,527.60, 1,246,999.80 and 432,035.60 is: 647,901.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,527.60 : 1,246,999.80 = 432,035.60 : x
  2. Step 2: Convert to fraction form
    831,527.60/1,246,999.80 = 432,035.60/x
  3. Step 3: Cross multiply
    831,527.60x = 1,246,999.80 × 432,035.60
  4. Step 4: Simplify right side
    831,527.60x = 538,748,306,792.88
  5. Step 5: Solve for x
    x = 538,748,306,792.88/831,527.60
  6. Step 6: Final answer
    x = 647,901.89

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1.5x scale

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.