Home / 771,252.40-1,159,643.40-649,601.20

Finding the Fourth Proportional to 771,252.40, 1,159,643.40 and 649,601.20

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Solution

The fourth proportional to 771,252.40, 1,159,643.40 and 649,601.20 is: 976,730.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,252.40 : 1,159,643.40 = 649,601.20 : x
  2. Step 2: Convert to fraction form
    771,252.40/1,159,643.40 = 649,601.20/x
  3. Step 3: Cross multiply
    771,252.40x = 1,159,643.40 × 649,601.20
  4. Step 4: Simplify right side
    771,252.40x = 753,305,744,212.08
  5. Step 5: Solve for x
    x = 753,305,744,212.08/771,252.40
  6. Step 6: Final answer
    x = 976,730.50

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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.