Home / 810,061.62-1,118,021.50-470,726.70

Finding the Fourth Proportional to 810,061.62, 1,118,021.50 and 470,726.70

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Solution

The fourth proportional to 810,061.62, 1,118,021.50 and 470,726.70 is: 649,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,061.62 : 1,118,021.50 = 470,726.70 : x
  2. Step 2: Convert to fraction form
    810,061.62/1,118,021.50 = 470,726.70/x
  3. Step 3: Cross multiply
    810,061.62x = 1,118,021.50 × 470,726.70
  4. Step 4: Simplify right side
    810,061.62x = 526,282,571,224.05
  5. Step 5: Solve for x
    x = 526,282,571,224.05/810,061.62
  6. Step 6: Final answer
    x = 649,682.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.