Home / 927,112.80-1,390,669.20-716,901.60

Finding the Fourth Proportional to 927,112.80, 1,390,669.20 and 716,901.60

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Solution

The fourth proportional to 927,112.80, 1,390,669.20 and 716,901.60 is: 1,075,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,112.80 : 1,390,669.20 = 716,901.60 : x
  2. Step 2: Convert to fraction form
    927,112.80/1,390,669.20 = 716,901.60/x
  3. Step 3: Cross multiply
    927,112.80x = 1,390,669.20 × 716,901.60
  4. Step 4: Simplify right side
    927,112.80x = 996,972,974,550.72
  5. Step 5: Solve for x
    x = 996,972,974,550.72/927,112.80
  6. Step 6: Final answer
    x = 1,075,352.40

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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.