Home / 448,311-618,669.18-247,111.32

Finding the Fourth Proportional to 448,311, 618,669.18 and 247,111.32

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Solution

The fourth proportional to 448,311, 618,669.18 and 247,111.32 is: 341,013.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,311 : 618,669.18 = 247,111.32 : x
  2. Step 2: Convert to fraction form
    448,311/618,669.18 = 247,111.32/x
  3. Step 3: Cross multiply
    448,311x = 618,669.18 × 247,111.32
  4. Step 4: Simplify right side
    448,311x = 152,880,157,713.12
  5. Step 5: Solve for x
    x = 152,880,157,713.12/448,311
  6. Step 6: Final answer
    x = 341,013.62

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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.