Home / 786,129.84-1,084,737.69-441,901.98

Finding the Fourth Proportional to 786,129.84, 1,084,737.69 and 441,901.98

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Solution

The fourth proportional to 786,129.84, 1,084,737.69 and 441,901.98 is: 609,756.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,129.84 : 1,084,737.69 = 441,901.98 : x
  2. Step 2: Convert to fraction form
    786,129.84/1,084,737.69 = 441,901.98/x
  3. Step 3: Cross multiply
    786,129.84x = 1,084,737.69 × 441,901.98
  4. Step 4: Simplify right side
    786,129.84x = 479,347,732,991.63
  5. Step 5: Solve for x
    x = 479,347,732,991.63/786,129.84
  6. Step 6: Final answer
    x = 609,756.44

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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.