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Finding the Fourth Proportional to 551,605.90, 759,456.48 and 470,708.77

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Solution

The fourth proportional to 551,605.90, 759,456.48 and 470,708.77 is: 648,076.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,605.90 : 759,456.48 = 470,708.77 : x
  2. Step 2: Convert to fraction form
    551,605.90/759,456.48 = 470,708.77/x
  3. Step 3: Cross multiply
    551,605.90x = 759,456.48 × 470,708.77
  4. Step 4: Simplify right side
    551,605.90x = 357,482,825,535.96
  5. Step 5: Solve for x
    x = 357,482,825,535.96/551,605.90
  6. Step 6: Final answer
    x = 648,076.51

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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.