Home / 4,878,415-6,728,421.78-3,330,921.40

Finding the Fourth Proportional to 4,878,415, 6,728,421.78 and 3,330,921.40

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Solution

The fourth proportional to 4,878,415, 6,728,421.78 and 3,330,921.40 is: 4,594,083.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878,415 : 6,728,421.78 = 3,330,921.40 : x
  2. Step 2: Convert to fraction form
    4,878,415/6,728,421.78 = 3,330,921.40/x
  3. Step 3: Cross multiply
    4,878,415x = 6,728,421.78 × 3,330,921.40
  4. Step 4: Simplify right side
    4,878,415x = 22,411,844,095,228.09
  5. Step 5: Solve for x
    x = 22,411,844,095,228.09/4,878,415
  6. Step 6: Final answer
    x = 4,594,083.14

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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.