Home / 878,394.56-1,211,697.62-510,831.45

Finding the Fourth Proportional to 878,394.56, 1,211,697.62 and 510,831.45

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Solution

The fourth proportional to 878,394.56, 1,211,697.62 and 510,831.45 is: 704,664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,394.56 : 1,211,697.62 = 510,831.45 : x
  2. Step 2: Convert to fraction form
    878,394.56/1,211,697.62 = 510,831.45/x
  3. Step 3: Cross multiply
    878,394.56x = 1,211,697.62 × 510,831.45
  4. Step 4: Simplify right side
    878,394.56x = 618,973,249,631.99
  5. Step 5: Solve for x
    x = 618,973,249,631.99/878,394.56
  6. Step 6: Final answer
    x = 704,664.26

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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.