Home / 1,015,956-1,402,032.78-557,069.40

Finding the Fourth Proportional to 1,015,956, 1,402,032.78 and 557,069.40

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Solution

The fourth proportional to 1,015,956, 1,402,032.78 and 557,069.40 is: 768,763.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,956 : 1,402,032.78 = 557,069.40 : x
  2. Step 2: Convert to fraction form
    1,015,956/1,402,032.78 = 557,069.40/x
  3. Step 3: Cross multiply
    1,015,956x = 1,402,032.78 × 557,069.40
  4. Step 4: Simplify right side
    1,015,956x = 781,029,559,534.93
  5. Step 5: Solve for x
    x = 781,029,559,534.93/1,015,956
  6. Step 6: Final answer
    x = 768,763.17

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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.