Home / 912,452.40-1,367,123.40-778,705.20

Finding the Fourth Proportional to 912,452.40, 1,367,123.40 and 778,705.20

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Solution

The fourth proportional to 912,452.40, 1,367,123.40 and 778,705.20 is: 1,166,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,452.40 : 1,367,123.40 = 778,705.20 : x
  2. Step 2: Convert to fraction form
    912,452.40/1,367,123.40 = 778,705.20/x
  3. Step 3: Cross multiply
    912,452.40x = 1,367,123.40 × 778,705.20
  4. Step 4: Simplify right side
    912,452.40x = 1,064,586,100,621.68
  5. Step 5: Solve for x
    x = 1,064,586,100,621.68/912,452.40
  6. Step 6: Final answer
    x = 1,166,730.56

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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.