Home / 839,239.48-1,158,135.90-457,269.40

Finding the Fourth Proportional to 839,239.48, 1,158,135.90 and 457,269.40

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Solution

The fourth proportional to 839,239.48, 1,158,135.90 and 457,269.40 is: 631,023.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,239.48 : 1,158,135.90 = 457,269.40 : x
  2. Step 2: Convert to fraction form
    839,239.48/1,158,135.90 = 457,269.40/x
  3. Step 3: Cross multiply
    839,239.48x = 1,158,135.90 × 457,269.40
  4. Step 4: Simplify right side
    839,239.48x = 529,580,108,111.46
  5. Step 5: Solve for x
    x = 529,580,108,111.46/839,239.48
  6. Step 6: Final answer
    x = 631,023.83

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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.