Home / 1,235,565.80-1,851,380.40-916,701.20

Finding the Fourth Proportional to 1,235,565.80, 1,851,380.40 and 916,701.20

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Solution

The fourth proportional to 1,235,565.80, 1,851,380.40 and 916,701.20 is: 1,373,591.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,565.80 : 1,851,380.40 = 916,701.20 : x
  2. Step 2: Convert to fraction form
    1,235,565.80/1,851,380.40 = 916,701.20/x
  3. Step 3: Cross multiply
    1,235,565.80x = 1,851,380.40 × 916,701.20
  4. Step 4: Simplify right side
    1,235,565.80x = 1,697,162,634,336.48
  5. Step 5: Solve for x
    x = 1,697,162,634,336.48/1,235,565.80
  6. Step 6: Final answer
    x = 1,373,591.46

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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.