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Finding the Fourth Proportional to 559,585.51, 839,478.00 and 260,403.91

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Solution

The fourth proportional to 559,585.51, 839,478.00 and 260,403.91 is: 390,652.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,585.51 : 839,478.00 = 260,403.91 : x
  2. Step 2: Convert to fraction form
    559,585.51/839,478.00 = 260,403.91/x
  3. Step 3: Cross multiply
    559,585.51x = 839,478.00 × 260,403.91
  4. Step 4: Simplify right side
    559,585.51x = 218,603,348,059.57
  5. Step 5: Solve for x
    x = 218,603,348,059.57/559,585.51
  6. Step 6: Final answer
    x = 390,652.27

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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.