Home / 1,018,813.95-1,406,392.27-687,734.96

Finding the Fourth Proportional to 1,018,813.95, 1,406,392.27 and 687,734.96

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Solution

The fourth proportional to 1,018,813.95, 1,406,392.27 and 687,734.96 is: 949,363.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,813.95 : 1,406,392.27 = 687,734.96 : x
  2. Step 2: Convert to fraction form
    1,018,813.95/1,406,392.27 = 687,734.96/x
  3. Step 3: Cross multiply
    1,018,813.95x = 1,406,392.27 × 687,734.96
  4. Step 4: Simplify right side
    1,018,813.95x = 967,225,122,801.46
  5. Step 5: Solve for x
    x = 967,225,122,801.46/1,018,813.95
  6. Step 6: Final answer
    x = 949,363.84

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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.