Home / 839,223.64-1,258,834.31-389,698.70

Finding the Fourth Proportional to 839,223.64, 1,258,834.31 and 389,698.70

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Solution

The fourth proportional to 839,223.64, 1,258,834.31 and 389,698.70 is: 584,547.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,223.64 : 1,258,834.31 = 389,698.70 : x
  2. Step 2: Convert to fraction form
    839,223.64/1,258,834.31 = 389,698.70/x
  3. Step 3: Cross multiply
    839,223.64x = 1,258,834.31 × 389,698.70
  4. Step 4: Simplify right side
    839,223.64x = 490,566,094,122.40
  5. Step 5: Solve for x
    x = 490,566,094,122.40/839,223.64
  6. Step 6: Final answer
    x = 584,547.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.