Home / 725,643.20-1,088,464.80-525,022.40

Finding the Fourth Proportional to 725,643.20, 1,088,464.80 and 525,022.40

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Solution

The fourth proportional to 725,643.20, 1,088,464.80 and 525,022.40 is: 787,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,643.20 : 1,088,464.80 = 525,022.40 : x
  2. Step 2: Convert to fraction form
    725,643.20/1,088,464.80 = 525,022.40/x
  3. Step 3: Cross multiply
    725,643.20x = 1,088,464.80 × 525,022.40
  4. Step 4: Simplify right side
    725,643.20x = 571,468,401,611.52
  5. Step 5: Solve for x
    x = 571,468,401,611.52/725,643.20
  6. Step 6: Final answer
    x = 787,533.60

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Double scale
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Similar ratio
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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.