Home / 786,417.66-1,085,241.04-442,257.98

Finding the Fourth Proportional to 786,417.66, 1,085,241.04 and 442,257.98

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Solution

The fourth proportional to 786,417.66, 1,085,241.04 and 442,257.98 is: 610,307.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,417.66 : 1,085,241.04 = 442,257.98 : x
  2. Step 2: Convert to fraction form
    786,417.66/1,085,241.04 = 442,257.98/x
  3. Step 3: Cross multiply
    786,417.66x = 1,085,241.04 × 442,257.98
  4. Step 4: Simplify right side
    786,417.66x = 479,956,503,631.65
  5. Step 5: Solve for x
    x = 479,956,503,631.65/786,417.66
  6. Step 6: Final answer
    x = 610,307.38

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Double scale
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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.