Home / 1,075,643.20-1,613,464.80-699,630.40

Finding the Fourth Proportional to 1,075,643.20, 1,613,464.80 and 699,630.40

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Solution

The fourth proportional to 1,075,643.20, 1,613,464.80 and 699,630.40 is: 1,049,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,643.20 : 1,613,464.80 = 699,630.40 : x
  2. Step 2: Convert to fraction form
    1,075,643.20/1,613,464.80 = 699,630.40/x
  3. Step 3: Cross multiply
    1,075,643.20x = 1,613,464.80 × 699,630.40
  4. Step 4: Simplify right side
    1,075,643.20x = 1,128,829,023,409.92
  5. Step 5: Solve for x
    x = 1,128,829,023,409.92/1,075,643.20
  6. Step 6: Final answer
    x = 1,049,445.60

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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.