Home / 1,319,831.04-1,821,341.76-803,397.12

Finding the Fourth Proportional to 1,319,831.04, 1,821,341.76 and 803,397.12

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Solution

The fourth proportional to 1,319,831.04, 1,821,341.76 and 803,397.12 is: 1,108,672.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,831.04 : 1,821,341.76 = 803,397.12 : x
  2. Step 2: Convert to fraction form
    1,319,831.04/1,821,341.76 = 803,397.12/x
  3. Step 3: Cross multiply
    1,319,831.04x = 1,821,341.76 × 803,397.12
  4. Step 4: Simplify right side
    1,319,831.04x = 1,463,260,724,519.73
  5. Step 5: Solve for x
    x = 1,463,260,724,519.73/1,319,831.04
  6. Step 6: Final answer
    x = 1,108,672.76

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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.