Home / 1,670,855.76-2,502,912.36-771,047.28

Finding the Fourth Proportional to 1,670,855.76, 2,502,912.36 and 771,047.28

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Solution

The fourth proportional to 1,670,855.76, 2,502,912.36 and 771,047.28 is: 1,155,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670,855.76 : 2,502,912.36 = 771,047.28 : x
  2. Step 2: Convert to fraction form
    1,670,855.76/2,502,912.36 = 771,047.28/x
  3. Step 3: Cross multiply
    1,670,855.76x = 2,502,912.36 × 771,047.28
  4. Step 4: Simplify right side
    1,670,855.76x = 1,929,863,767,256.38
  5. Step 5: Solve for x
    x = 1,929,863,767,256.38/1,670,855.76
  6. Step 6: Final answer
    x = 1,155,015.18

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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.