Home / 878,525.80-1,318,116.72-346,417.78

Finding the Fourth Proportional to 878,525.80, 1,318,116.72 and 346,417.78

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Solution

The fourth proportional to 878,525.80, 1,318,116.72 and 346,417.78 is: 519,756.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,525.80 : 1,318,116.72 = 346,417.78 : x
  2. Step 2: Convert to fraction form
    878,525.80/1,318,116.72 = 346,417.78/x
  3. Step 3: Cross multiply
    878,525.80x = 1,318,116.72 × 346,417.78
  4. Step 4: Simplify right side
    878,525.80x = 456,619,067,923.28
  5. Step 5: Solve for x
    x = 456,619,067,923.28/878,525.80
  6. Step 6: Final answer
    x = 519,756.01

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1.5x scale

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.