Home / 1,289,901.40-1,934,852.10-991,886.20

Finding the Fourth Proportional to 1,289,901.40, 1,934,852.10 and 991,886.20

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Solution

The fourth proportional to 1,289,901.40, 1,934,852.10 and 991,886.20 is: 1,487,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,901.40 : 1,934,852.10 = 991,886.20 : x
  2. Step 2: Convert to fraction form
    1,289,901.40/1,934,852.10 = 991,886.20/x
  3. Step 3: Cross multiply
    1,289,901.40x = 1,934,852.10 × 991,886.20
  4. Step 4: Simplify right side
    1,289,901.40x = 1,919,153,097,031.02
  5. Step 5: Solve for x
    x = 1,919,153,097,031.02/1,289,901.40
  6. Step 6: Final answer
    x = 1,487,829.30

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Similar ratio
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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.