Home / 879,520.07-1,213,740.02-477,112.07

Finding the Fourth Proportional to 879,520.07, 1,213,740.02 and 477,112.07

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Solution

The fourth proportional to 879,520.07, 1,213,740.02 and 477,112.07 is: 658,415.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,520.07 : 1,213,740.02 = 477,112.07 : x
  2. Step 2: Convert to fraction form
    879,520.07/1,213,740.02 = 477,112.07/x
  3. Step 3: Cross multiply
    879,520.07x = 1,213,740.02 × 477,112.07
  4. Step 4: Simplify right side
    879,520.07x = 579,090,008,508.12
  5. Step 5: Solve for x
    x = 579,090,008,508.12/879,520.07
  6. Step 6: Final answer
    x = 658,415.92

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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.