Home / 1,319,812.47-1,821,341.21-716,200.47

Finding the Fourth Proportional to 1,319,812.47, 1,821,341.21 and 716,200.47

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Solution

The fourth proportional to 1,319,812.47, 1,821,341.21 and 716,200.47 is: 988,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,812.47 : 1,821,341.21 = 716,200.47 : x
  2. Step 2: Convert to fraction form
    1,319,812.47/1,821,341.21 = 716,200.47/x
  3. Step 3: Cross multiply
    1,319,812.47x = 1,821,341.21 × 716,200.47
  4. Step 4: Simplify right side
    1,319,812.47x = 1,304,445,426,565.19
  5. Step 5: Solve for x
    x = 1,304,445,426,565.19/1,319,812.47
  6. Step 6: Final answer
    x = 988,356.65

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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.