Home / 1,709,728.40-2,564,264.55-511,689.80

Finding the Fourth Proportional to 1,709,728.40, 2,564,264.55 and 511,689.80

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Solution

The fourth proportional to 1,709,728.40, 2,564,264.55 and 511,689.80 is: 767,436.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709,728.40 : 2,564,264.55 = 511,689.80 : x
  2. Step 2: Convert to fraction form
    1,709,728.40/2,564,264.55 = 511,689.80/x
  3. Step 3: Cross multiply
    1,709,728.40x = 2,564,264.55 × 511,689.80
  4. Step 4: Simplify right side
    1,709,728.40x = 1,312,108,014,736.59
  5. Step 5: Solve for x
    x = 1,312,108,014,736.59/1,709,728.40
  6. Step 6: Final answer
    x = 767,436.52

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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.