Home / 912,444.40-1,367,111.40-778,697.20

Finding the Fourth Proportional to 912,444.40, 1,367,111.40 and 778,697.20

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Solution

The fourth proportional to 912,444.40, 1,367,111.40 and 778,697.20 is: 1,166,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,444.40 : 1,367,111.40 = 778,697.20 : x
  2. Step 2: Convert to fraction form
    912,444.40/1,367,111.40 = 778,697.20/x
  3. Step 3: Cross multiply
    912,444.40x = 1,367,111.40 × 778,697.20
  4. Step 4: Simplify right side
    912,444.40x = 1,064,565,819,268.08
  5. Step 5: Solve for x
    x = 1,064,565,819,268.08/912,444.40
  6. Step 6: Final answer
    x = 1,166,718.56

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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.