Home / 780,456.65-1,168,774.29-644,690.07

Finding the Fourth Proportional to 780,456.65, 1,168,774.29 and 644,690.07

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Solution

The fourth proportional to 780,456.65, 1,168,774.29 and 644,690.07 is: 965,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,456.65 : 1,168,774.29 = 644,690.07 : x
  2. Step 2: Convert to fraction form
    780,456.65/1,168,774.29 = 644,690.07/x
  3. Step 3: Cross multiply
    780,456.65x = 1,168,774.29 × 644,690.07
  4. Step 4: Simplify right side
    780,456.65x = 753,497,178,834.30
  5. Step 5: Solve for x
    x = 753,497,178,834.30/780,456.65
  6. Step 6: Final answer
    x = 965,456.80

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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.