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Finding the Fourth Proportional to 877,807, 1,211,373.66 and 475,399

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Solution

The fourth proportional to 877,807, 1,211,373.66 and 475,399 is: 656,050.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,807 : 1,211,373.66 = 475,399 : x
  2. Step 2: Convert to fraction form
    877,807/1,211,373.66 = 475,399/x
  3. Step 3: Cross multiply
    877,807x = 1,211,373.66 × 475,399
  4. Step 4: Simplify right side
    877,807x = 575,885,826,590.34
  5. Step 5: Solve for x
    x = 575,885,826,590.34/877,807
  6. Step 6: Final answer
    x = 656,050.62

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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.