Home / 879,642.51-1,213,901.60-477,225.87

Finding the Fourth Proportional to 879,642.51, 1,213,901.60 and 477,225.87

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Solution

The fourth proportional to 879,642.51, 1,213,901.60 and 477,225.87 is: 658,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,642.51 : 1,213,901.60 = 477,225.87 : x
  2. Step 2: Convert to fraction form
    879,642.51/1,213,901.60 = 477,225.87/x
  3. Step 3: Cross multiply
    879,642.51x = 1,213,901.60 × 477,225.87
  4. Step 4: Simplify right side
    879,642.51x = 579,305,244,768.26
  5. Step 5: Solve for x
    x = 579,305,244,768.26/879,642.51
  6. Step 6: Final answer
    x = 658,568.95

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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.