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Finding the Fourth Proportional to 673,285.77, 929,133.86 and 371,479.77

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Solution

The fourth proportional to 673,285.77, 929,133.86 and 371,479.77 is: 512,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,285.77 : 929,133.86 = 371,479.77 : x
  2. Step 2: Convert to fraction form
    673,285.77/929,133.86 = 371,479.77/x
  3. Step 3: Cross multiply
    673,285.77x = 929,133.86 × 371,479.77
  4. Step 4: Simplify right side
    673,285.77x = 345,154,430,754.61
  5. Step 5: Solve for x
    x = 345,154,430,754.61/673,285.77
  6. Step 6: Final answer
    x = 512,641.80

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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.