Home / 1,126,464-1,554,137.60-642,681.60

Finding the Fourth Proportional to 1,126,464, 1,554,137.60 and 642,681.60

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Solution

The fourth proportional to 1,126,464, 1,554,137.60 and 642,681.60 is: 886,682.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,464 : 1,554,137.60 = 642,681.60 : x
  2. Step 2: Convert to fraction form
    1,126,464/1,554,137.60 = 642,681.60/x
  3. Step 3: Cross multiply
    1,126,464x = 1,554,137.60 × 642,681.60
  4. Step 4: Simplify right side
    1,126,464x = 998,815,639,388.16
  5. Step 5: Solve for x
    x = 998,815,639,388.16/1,126,464
  6. Step 6: Final answer
    x = 886,682.25

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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.