Home / 927,116.80-1,390,675.20-716,905.60

Finding the Fourth Proportional to 927,116.80, 1,390,675.20 and 716,905.60

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Solution

The fourth proportional to 927,116.80, 1,390,675.20 and 716,905.60 is: 1,075,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,116.80 : 1,390,675.20 = 716,905.60 : x
  2. Step 2: Convert to fraction form
    927,116.80/1,390,675.20 = 716,905.60/x
  3. Step 3: Cross multiply
    927,116.80x = 1,390,675.20 × 716,905.60
  4. Step 4: Simplify right side
    927,116.80x = 996,982,838,661.12
  5. Step 5: Solve for x
    x = 996,982,838,661.12/927,116.80
  6. Step 6: Final answer
    x = 1,075,358.40

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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.