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Finding the Fourth Proportional to 601,603.20, 830,185.20 and 346,939.20

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Solution

The fourth proportional to 601,603.20, 830,185.20 and 346,939.20 is: 478,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,603.20 : 830,185.20 = 346,939.20 : x
  2. Step 2: Convert to fraction form
    601,603.20/830,185.20 = 346,939.20/x
  3. Step 3: Cross multiply
    601,603.20x = 830,185.20 × 346,939.20
  4. Step 4: Simplify right side
    601,603.20x = 288,023,789,139.84
  5. Step 5: Solve for x
    x = 288,023,789,139.84/601,603.20
  6. Step 6: Final answer
    x = 478,760.40

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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.