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Finding the Fourth Proportional to 666,895.34, 920,315.58 and 365,089.34

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Solution

The fourth proportional to 666,895.34, 920,315.58 and 365,089.34 is: 503,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,895.34 : 920,315.58 = 365,089.34 : x
  2. Step 2: Convert to fraction form
    666,895.34/920,315.58 = 365,089.34/x
  3. Step 3: Cross multiply
    666,895.34x = 920,315.58 × 365,089.34
  4. Step 4: Simplify right side
    666,895.34x = 335,997,407,693.92
  5. Step 5: Solve for x
    x = 335,997,407,693.92/666,895.34
  6. Step 6: Final answer
    x = 503,823.30

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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.