Home / 840,485.58-1,159,711.47-500,985.42

Finding the Fourth Proportional to 840,485.58, 1,159,711.47 and 500,985.42

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Solution

The fourth proportional to 840,485.58, 1,159,711.47 and 500,985.42 is: 691,265.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,485.58 : 1,159,711.47 = 500,985.42 : x
  2. Step 2: Convert to fraction form
    840,485.58/1,159,711.47 = 500,985.42/x
  3. Step 3: Cross multiply
    840,485.58x = 1,159,711.47 × 500,985.42
  4. Step 4: Simplify right side
    840,485.58x = 580,998,537,876.77
  5. Step 5: Solve for x
    x = 580,998,537,876.77/840,485.58
  6. Step 6: Final answer
    x = 691,265.33

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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.