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Finding the Fourth Proportional to 692,809, 955,463.70 and 450,868.84

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Solution

The fourth proportional to 692,809, 955,463.70 and 450,868.84 is: 621,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,809 : 955,463.70 = 450,868.84 : x
  2. Step 2: Convert to fraction form
    692,809/955,463.70 = 450,868.84/x
  3. Step 3: Cross multiply
    692,809x = 955,463.70 × 450,868.84
  4. Step 4: Simplify right side
    692,809x = 430,788,810,081.11
  5. Step 5: Solve for x
    x = 430,788,810,081.11/692,809
  6. Step 6: Final answer
    x = 621,800.25

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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.