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Finding the Fourth Proportional to 346,615.80, 519,923.70 and 339,617.40

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Solution

The fourth proportional to 346,615.80, 519,923.70 and 339,617.40 is: 509,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,615.80 : 519,923.70 = 339,617.40 : x
  2. Step 2: Convert to fraction form
    346,615.80/519,923.70 = 339,617.40/x
  3. Step 3: Cross multiply
    346,615.80x = 519,923.70 × 339,617.40
  4. Step 4: Simplify right side
    346,615.80x = 176,575,135,192.38
  5. Step 5: Solve for x
    x = 176,575,135,192.38/346,615.80
  6. Step 6: Final answer
    x = 509,426.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.