Home / 1,298,573.30-1,947,859.95-820,276.40

Finding the Fourth Proportional to 1,298,573.30, 1,947,859.95 and 820,276.40

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Solution

The fourth proportional to 1,298,573.30, 1,947,859.95 and 820,276.40 is: 1,230,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,573.30 : 1,947,859.95 = 820,276.40 : x
  2. Step 2: Convert to fraction form
    1,298,573.30/1,947,859.95 = 820,276.40/x
  3. Step 3: Cross multiply
    1,298,573.30x = 1,947,859.95 × 820,276.40
  4. Step 4: Simplify right side
    1,298,573.30x = 1,597,783,547,490.18
  5. Step 5: Solve for x
    x = 1,597,783,547,490.18/1,298,573.30
  6. Step 6: Final answer
    x = 1,230,414.60

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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.