Home / 1,277,355.60-1,913,864.45-770,852.28

Finding the Fourth Proportional to 1,277,355.60, 1,913,864.45 and 770,852.28

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Solution

The fourth proportional to 1,277,355.60, 1,913,864.45 and 770,852.28 is: 1,154,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,355.60 : 1,913,864.45 = 770,852.28 : x
  2. Step 2: Convert to fraction form
    1,277,355.60/1,913,864.45 = 770,852.28/x
  3. Step 3: Cross multiply
    1,277,355.60x = 1,913,864.45 × 770,852.28
  4. Step 4: Simplify right side
    1,277,355.60x = 1,475,306,771,039.18
  5. Step 5: Solve for x
    x = 1,475,306,771,039.18/1,277,355.60
  6. Step 6: Final answer
    x = 1,154,969.51

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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.