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Finding the Fourth Proportional to 638,237.72, 880,802.70 and 366,303.44

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Solution

The fourth proportional to 638,237.72, 880,802.70 and 366,303.44 is: 505,518.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,237.72 : 880,802.70 = 366,303.44 : x
  2. Step 2: Convert to fraction form
    638,237.72/880,802.70 = 366,303.44/x
  3. Step 3: Cross multiply
    638,237.72x = 880,802.70 × 366,303.44
  4. Step 4: Simplify right side
    638,237.72x = 322,641,058,971.29
  5. Step 5: Solve for x
    x = 322,641,058,971.29/638,237.72
  6. Step 6: Final answer
    x = 505,518.63

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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.