Home / 771,246.40-1,159,634.40-649,595.20

Finding the Fourth Proportional to 771,246.40, 1,159,634.40 and 649,595.20

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Solution

The fourth proportional to 771,246.40, 1,159,634.40 and 649,595.20 is: 976,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,246.40 : 1,159,634.40 = 649,595.20 : x
  2. Step 2: Convert to fraction form
    771,246.40/1,159,634.40 = 649,595.20/x
  3. Step 3: Cross multiply
    771,246.40x = 1,159,634.40 × 649,595.20
  4. Step 4: Simplify right side
    771,246.40x = 753,292,939,994.88
  5. Step 5: Solve for x
    x = 753,292,939,994.88/771,246.40
  6. Step 6: Final answer
    x = 976,721.50

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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.