Home / 810,112-1,117,943.04-470,771.20

Finding the Fourth Proportional to 810,112, 1,117,943.04 and 470,771.20

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Solution

The fourth proportional to 810,112, 1,117,943.04 and 470,771.20 is: 649,657.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,112 : 1,117,943.04 = 470,771.20 : x
  2. Step 2: Convert to fraction form
    810,112/1,117,943.04 = 470,771.20/x
  3. Step 3: Cross multiply
    810,112x = 1,117,943.04 × 470,771.20
  4. Step 4: Simplify right side
    810,112x = 526,295,386,472.45
  5. Step 5: Solve for x
    x = 526,295,386,472.45/810,112
  6. Step 6: Final answer
    x = 649,657.56

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1.5x scale

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.