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Finding the Fourth Proportional to 528,079.45, 792,119.18 and 470,018.65

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Solution

The fourth proportional to 528,079.45, 792,119.18 and 470,018.65 is: 705,027.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,079.45 : 792,119.18 = 470,018.65 : x
  2. Step 2: Convert to fraction form
    528,079.45/792,119.18 = 470,018.65/x
  3. Step 3: Cross multiply
    528,079.45x = 792,119.18 × 470,018.65
  4. Step 4: Simplify right side
    528,079.45x = 372,310,787,622.71
  5. Step 5: Solve for x
    x = 372,310,787,622.71/528,079.45
  6. Step 6: Final answer
    x = 705,027.98

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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.