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Finding the Fourth Proportional to 666,692.99, 920,029.32 and 360,762.69

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Solution

The fourth proportional to 666,692.99, 920,029.32 and 360,762.69 is: 497,848.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,692.99 : 920,029.32 = 360,762.69 : x
  2. Step 2: Convert to fraction form
    666,692.99/920,029.32 = 360,762.69/x
  3. Step 3: Cross multiply
    666,692.99x = 920,029.32 × 360,762.69
  4. Step 4: Simplify right side
    666,692.99x = 331,912,252,362.07
  5. Step 5: Solve for x
    x = 331,912,252,362.07/666,692.99
  6. Step 6: Final answer
    x = 497,848.72

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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.