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Finding the Fourth Proportional to 638,500.97, 880,215.48 and 502,298.19

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Solution

The fourth proportional to 638,500.97, 880,215.48 and 502,298.19 is: 692,451.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,500.97 : 880,215.48 = 502,298.19 : x
  2. Step 2: Convert to fraction form
    638,500.97/880,215.48 = 502,298.19/x
  3. Step 3: Cross multiply
    638,500.97x = 880,215.48 × 502,298.19
  4. Step 4: Simplify right side
    638,500.97x = 442,130,642,413.98
  5. Step 5: Solve for x
    x = 442,130,642,413.98/638,500.97
  6. Step 6: Final answer
    x = 692,451.01

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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.