Home / 689,041.16-1,033,699.72-385,866.46

Finding the Fourth Proportional to 689,041.16, 1,033,699.72 and 385,866.46

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Solution

The fourth proportional to 689,041.16, 1,033,699.72 and 385,866.46 is: 578,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,041.16 : 1,033,699.72 = 385,866.46 : x
  2. Step 2: Convert to fraction form
    689,041.16/1,033,699.72 = 385,866.46/x
  3. Step 3: Cross multiply
    689,041.16x = 1,033,699.72 × 385,866.46
  4. Step 4: Simplify right side
    689,041.16x = 398,870,051,659.39
  5. Step 5: Solve for x
    x = 398,870,051,659.39/689,041.16
  6. Step 6: Final answer
    x = 578,876.96

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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.