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Finding the Fourth Proportional to 578,853.36, 798,378.33 and 507,108.81

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Solution

The fourth proportional to 578,853.36, 798,378.33 and 507,108.81 is: 699,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,853.36 : 798,378.33 = 507,108.81 : x
  2. Step 2: Convert to fraction form
    578,853.36/798,378.33 = 507,108.81/x
  3. Step 3: Cross multiply
    578,853.36x = 798,378.33 × 507,108.81
  4. Step 4: Simplify right side
    578,853.36x = 404,864,684,856.09
  5. Step 5: Solve for x
    x = 404,864,684,856.09/578,853.36
  6. Step 6: Final answer
    x = 699,425.30

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Double scale
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1.5x scale

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.