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Finding the Fourth Proportional to 638,047.15, 880,498.01 and 362,403.13

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Solution

The fourth proportional to 638,047.15, 880,498.01 and 362,403.13 is: 500,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,047.15 : 880,498.01 = 362,403.13 : x
  2. Step 2: Convert to fraction form
    638,047.15/880,498.01 = 362,403.13/x
  3. Step 3: Cross multiply
    638,047.15x = 880,498.01 × 362,403.13
  4. Step 4: Simplify right side
    638,047.15x = 319,095,234,782.77
  5. Step 5: Solve for x
    x = 319,095,234,782.77/638,047.15
  6. Step 6: Final answer
    x = 500,112.31

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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.