Home / 1,359,140.40-2,038,710.60-911,242.80

Finding the Fourth Proportional to 1,359,140.40, 2,038,710.60 and 911,242.80

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Solution

The fourth proportional to 1,359,140.40, 2,038,710.60 and 911,242.80 is: 1,366,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,140.40 : 2,038,710.60 = 911,242.80 : x
  2. Step 2: Convert to fraction form
    1,359,140.40/2,038,710.60 = 911,242.80/x
  3. Step 3: Cross multiply
    1,359,140.40x = 2,038,710.60 × 911,242.80
  4. Step 4: Simplify right side
    1,359,140.40x = 1,857,760,355,533.68
  5. Step 5: Solve for x
    x = 1,857,760,355,533.68/1,359,140.40
  6. Step 6: Final answer
    x = 1,366,864.20

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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.