Home / 786,417.07-1,085,245.21-442,252.89

Finding the Fourth Proportional to 786,417.07, 1,085,245.21 and 442,252.89

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Solution

The fourth proportional to 786,417.07, 1,085,245.21 and 442,252.89 is: 610,303.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,417.07 : 1,085,245.21 = 442,252.89 : x
  2. Step 2: Convert to fraction form
    786,417.07/1,085,245.21 = 442,252.89/x
  3. Step 3: Cross multiply
    786,417.07x = 1,085,245.21 × 442,252.89
  4. Step 4: Simplify right side
    786,417.07x = 479,952,832,659.34
  5. Step 5: Solve for x
    x = 479,952,832,659.34/786,417.07
  6. Step 6: Final answer
    x = 610,303.18

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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.