Home / 6,448,574.79-8,893,995.08-3,999,812.76

Finding the Fourth Proportional to 6,448,574.79, 8,893,995.08 and 3,999,812.76

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Solution

The fourth proportional to 6,448,574.79, 8,893,995.08 and 3,999,812.76 is: 5,516,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448,574.79 : 8,893,995.08 = 3,999,812.76 : x
  2. Step 2: Convert to fraction form
    6,448,574.79/8,893,995.08 = 3,999,812.76/x
  3. Step 3: Cross multiply
    6,448,574.79x = 8,893,995.08 × 3,999,812.76
  4. Step 4: Simplify right side
    6,448,574.79x = 35,574,314,988,362.15
  5. Step 5: Solve for x
    x = 35,574,314,988,362.15/6,448,574.79
  6. Step 6: Final answer
    x = 5,516,616.64

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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.