Home / 1,087,999.80-1,631,999.70-1,065,881.40

Finding the Fourth Proportional to 1,087,999.80, 1,631,999.70 and 1,065,881.40

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Solution

The fourth proportional to 1,087,999.80, 1,631,999.70 and 1,065,881.40 is: 1,598,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,999.80 : 1,631,999.70 = 1,065,881.40 : x
  2. Step 2: Convert to fraction form
    1,087,999.80/1,631,999.70 = 1,065,881.40/x
  3. Step 3: Cross multiply
    1,087,999.80x = 1,631,999.70 × 1,065,881.40
  4. Step 4: Simplify right side
    1,087,999.80x = 1,739,518,125,035.58
  5. Step 5: Solve for x
    x = 1,739,518,125,035.58/1,087,999.80
  6. Step 6: Final answer
    x = 1,598,822.10

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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.