Home / 763,913.36-1,053,831.84-508,938.32

Finding the Fourth Proportional to 763,913.36, 1,053,831.84 and 508,938.32

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Solution

The fourth proportional to 763,913.36, 1,053,831.84 and 508,938.32 is: 702,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,913.36 : 1,053,831.84 = 508,938.32 : x
  2. Step 2: Convert to fraction form
    763,913.36/1,053,831.84 = 508,938.32/x
  3. Step 3: Cross multiply
    763,913.36x = 1,053,831.84 × 508,938.32
  4. Step 4: Simplify right side
    763,913.36x = 536,335,400,942.95
  5. Step 5: Solve for x
    x = 536,335,400,942.95/763,913.36
  6. Step 6: Final answer
    x = 702,089.31

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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.