Home / 763,880.88-1,053,760.35-518,878.29

Finding the Fourth Proportional to 763,880.88, 1,053,760.35 and 518,878.29

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Solution

The fourth proportional to 763,880.88, 1,053,760.35 and 518,878.29 is: 715,783.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,880.88 : 1,053,760.35 = 518,878.29 : x
  2. Step 2: Convert to fraction form
    763,880.88/1,053,760.35 = 518,878.29/x
  3. Step 3: Cross multiply
    763,880.88x = 1,053,760.35 × 518,878.29
  4. Step 4: Simplify right side
    763,880.88x = 546,773,368,477.80
  5. Step 5: Solve for x
    x = 546,773,368,477.80/763,880.88
  6. Step 6: Final answer
    x = 715,783.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.