Home / 912,881.20-1,369,321.80-907,632.40

Finding the Fourth Proportional to 912,881.20, 1,369,321.80 and 907,632.40

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Solution

The fourth proportional to 912,881.20, 1,369,321.80 and 907,632.40 is: 1,361,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,881.20 : 1,369,321.80 = 907,632.40 : x
  2. Step 2: Convert to fraction form
    912,881.20/1,369,321.80 = 907,632.40/x
  3. Step 3: Cross multiply
    912,881.20x = 1,369,321.80 × 907,632.40
  4. Step 4: Simplify right side
    912,881.20x = 1,242,840,831,706.32
  5. Step 5: Solve for x
    x = 1,242,840,831,706.32/912,881.20
  6. Step 6: Final answer
    x = 1,361,448.60

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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.