Home / 1,142,185.81-1,712,073.09-383,307.74

Finding the Fourth Proportional to 1,142,185.81, 1,712,073.09 and 383,307.74

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Solution

The fourth proportional to 1,142,185.81, 1,712,073.09 and 383,307.74 is: 574,557.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,185.81 : 1,712,073.09 = 383,307.74 : x
  2. Step 2: Convert to fraction form
    1,142,185.81/1,712,073.09 = 383,307.74/x
  3. Step 3: Cross multiply
    1,142,185.81x = 1,712,073.09 × 383,307.74
  4. Step 4: Simplify right side
    1,142,185.81x = 656,250,866,842.72
  5. Step 5: Solve for x
    x = 656,250,866,842.72/1,142,185.81
  6. Step 6: Final answer
    x = 574,557.01

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Double scale
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1.5x scale

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.