Home / 786,009.52-1,178,173.25-406,548.15

Finding the Fourth Proportional to 786,009.52, 1,178,173.25 and 406,548.15

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Solution

The fourth proportional to 786,009.52, 1,178,173.25 and 406,548.15 is: 609,387.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,009.52 : 1,178,173.25 = 406,548.15 : x
  2. Step 2: Convert to fraction form
    786,009.52/1,178,173.25 = 406,548.15/x
  3. Step 3: Cross multiply
    786,009.52x = 1,178,173.25 × 406,548.15
  4. Step 4: Simplify right side
    786,009.52x = 478,984,150,240.65
  5. Step 5: Solve for x
    x = 478,984,150,240.65/786,009.52
  6. Step 6: Final answer
    x = 609,387.21

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1.5x scale

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.