Home / 1,117,978.93-1,542,950.40-634,700.53

Finding the Fourth Proportional to 1,117,978.93, 1,542,950.40 and 634,700.53

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Solution

The fourth proportional to 1,117,978.93, 1,542,950.40 and 634,700.53 is: 875,965.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,978.93 : 1,542,950.40 = 634,700.53 : x
  2. Step 2: Convert to fraction form
    1,117,978.93/1,542,950.40 = 634,700.53/x
  3. Step 3: Cross multiply
    1,117,978.93x = 1,542,950.40 × 634,700.53
  4. Step 4: Simplify right side
    1,117,978.93x = 979,311,436,643.71
  5. Step 5: Solve for x
    x = 979,311,436,643.71/1,117,978.93
  6. Step 6: Final answer
    x = 875,965.92

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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.