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Finding the Fourth Proportional to 559,784.80, 839,677.20 and 346,722.40

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Solution

The fourth proportional to 559,784.80, 839,677.20 and 346,722.40 is: 520,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,784.80 : 839,677.20 = 346,722.40 : x
  2. Step 2: Convert to fraction form
    559,784.80/839,677.20 = 346,722.40/x
  3. Step 3: Cross multiply
    559,784.80x = 839,677.20 × 346,722.40
  4. Step 4: Simplify right side
    559,784.80x = 291,134,894,009.28
  5. Step 5: Solve for x
    x = 291,134,894,009.28/559,784.80
  6. Step 6: Final answer
    x = 520,083.60

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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.