Home / 1,916,686.80-2,645,395.20-1,152,986.40

Finding the Fourth Proportional to 1,916,686.80, 2,645,395.20 and 1,152,986.40

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Solution

The fourth proportional to 1,916,686.80, 2,645,395.20 and 1,152,986.40 is: 1,591,342.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,686.80 : 2,645,395.20 = 1,152,986.40 : x
  2. Step 2: Convert to fraction form
    1,916,686.80/2,645,395.20 = 1,152,986.40/x
  3. Step 3: Cross multiply
    1,916,686.80x = 2,645,395.20 × 1,152,986.40
  4. Step 4: Simplify right side
    1,916,686.80x = 3,050,104,688,225.28
  5. Step 5: Solve for x
    x = 3,050,104,688,225.28/1,916,686.80
  6. Step 6: Final answer
    x = 1,591,342.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.