Home / 670,146.95-1,005,293.94-290,806.94

Finding the Fourth Proportional to 670,146.95, 1,005,293.94 and 290,806.94

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Solution

The fourth proportional to 670,146.95, 1,005,293.94 and 290,806.94 is: 436,242.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,146.95 : 1,005,293.94 = 290,806.94 : x
  2. Step 2: Convert to fraction form
    670,146.95/1,005,293.94 = 290,806.94/x
  3. Step 3: Cross multiply
    670,146.95x = 1,005,293.94 × 290,806.94
  4. Step 4: Simplify right side
    670,146.95x = 292,346,455,914.65
  5. Step 5: Solve for x
    x = 292,346,455,914.65/670,146.95
  6. Step 6: Final answer
    x = 436,242.31

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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.