Home / 809,812.69-1,117,541.51-470,302.81

Finding the Fourth Proportional to 809,812.69, 1,117,541.51 and 470,302.81

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Solution

The fourth proportional to 809,812.69, 1,117,541.51 and 470,302.81 is: 649,017.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,812.69 : 1,117,541.51 = 470,302.81 : x
  2. Step 2: Convert to fraction form
    809,812.69/1,117,541.51 = 470,302.81/x
  3. Step 3: Cross multiply
    809,812.69x = 1,117,541.51 × 470,302.81
  4. Step 4: Simplify right side
    809,812.69x = 525,582,909,062.91
  5. Step 5: Solve for x
    x = 525,582,909,062.91/809,812.69
  6. Step 6: Final answer
    x = 649,017.87

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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.