Home / 1,005,307.59-1,387,992.56-772,319.58

Finding the Fourth Proportional to 1,005,307.59, 1,387,992.56 and 772,319.58

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Solution

The fourth proportional to 1,005,307.59, 1,387,992.56 and 772,319.58 is: 1,066,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,307.59 : 1,387,992.56 = 772,319.58 : x
  2. Step 2: Convert to fraction form
    1,005,307.59/1,387,992.56 = 772,319.58/x
  3. Step 3: Cross multiply
    1,005,307.59x = 1,387,992.56 × 772,319.58
  4. Step 4: Simplify right side
    1,005,307.59x = 1,071,973,832,325.70
  5. Step 5: Solve for x
    x = 1,071,973,832,325.70/1,005,307.59
  6. Step 6: Final answer
    x = 1,066,314.27

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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.