Home / 917,359.40-1,376,039.10-831,738.35

Finding the Fourth Proportional to 917,359.40, 1,376,039.10 and 831,738.35

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Solution

The fourth proportional to 917,359.40, 1,376,039.10 and 831,738.35 is: 1,247,607.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,359.40 : 1,376,039.10 = 831,738.35 : x
  2. Step 2: Convert to fraction form
    917,359.40/1,376,039.10 = 831,738.35/x
  3. Step 3: Cross multiply
    917,359.40x = 1,376,039.10 × 831,738.35
  4. Step 4: Simplify right side
    917,359.40x = 1,144,504,490,569.49
  5. Step 5: Solve for x
    x = 1,144,504,490,569.49/917,359.40
  6. Step 6: Final answer
    x = 1,247,607.53

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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.