Home / 990,083.61-1,484,887.46-457,092.72

Finding the Fourth Proportional to 990,083.61, 1,484,887.46 and 457,092.72

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Solution

The fourth proportional to 990,083.61, 1,484,887.46 and 457,092.72 is: 685,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,083.61 : 1,484,887.46 = 457,092.72 : x
  2. Step 2: Convert to fraction form
    990,083.61/1,484,887.46 = 457,092.72/x
  3. Step 3: Cross multiply
    990,083.61x = 1,484,887.46 × 457,092.72
  4. Step 4: Simplify right side
    990,083.61x = 678,731,245,699.83
  5. Step 5: Solve for x
    x = 678,731,245,699.83/990,083.61
  6. Step 6: Final answer
    x = 685,529.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.