Home / 1,070,967.36-1,478,935.08-689,664.72

Finding the Fourth Proportional to 1,070,967.36, 1,478,935.08 and 689,664.72

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Solution

The fourth proportional to 1,070,967.36, 1,478,935.08 and 689,664.72 is: 952,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,967.36 : 1,478,935.08 = 689,664.72 : x
  2. Step 2: Convert to fraction form
    1,070,967.36/1,478,935.08 = 689,664.72/x
  3. Step 3: Cross multiply
    1,070,967.36x = 1,478,935.08 × 689,664.72
  4. Step 4: Simplify right side
    1,070,967.36x = 1,019,969,347,846.38
  5. Step 5: Solve for x
    x = 1,019,969,347,846.38/1,070,967.36
  6. Step 6: Final answer
    x = 952,381.36

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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.