Home / 990,064.79-1,366,055.24-560,344.91

Finding the Fourth Proportional to 990,064.79, 1,366,055.24 and 560,344.91

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Solution

The fourth proportional to 990,064.79, 1,366,055.24 and 560,344.91 is: 773,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,064.79 : 1,366,055.24 = 560,344.91 : x
  2. Step 2: Convert to fraction form
    990,064.79/1,366,055.24 = 560,344.91/x
  3. Step 3: Cross multiply
    990,064.79x = 1,366,055.24 × 560,344.91
  4. Step 4: Simplify right side
    990,064.79x = 765,462,090,880.83
  5. Step 5: Solve for x
    x = 765,462,090,880.83/990,064.79
  6. Step 6: Final answer
    x = 773,143.44

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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.