Home / 1,237,921-1,856,881.52-817,098.46

Finding the Fourth Proportional to 1,237,921, 1,856,881.52 and 817,098.46

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Solution

The fourth proportional to 1,237,921, 1,856,881.52 and 817,098.46 is: 1,225,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,921 : 1,856,881.52 = 817,098.46 : x
  2. Step 2: Convert to fraction form
    1,237,921/1,856,881.52 = 817,098.46/x
  3. Step 3: Cross multiply
    1,237,921x = 1,856,881.52 × 817,098.46
  4. Step 4: Simplify right side
    1,237,921x = 1,517,255,030,394.46
  5. Step 5: Solve for x
    x = 1,517,255,030,394.46/1,237,921
  6. Step 6: Final answer
    x = 1,225,647.70

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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.