Home / 805,507.79-1,111,562.70-442,946.93

Finding the Fourth Proportional to 805,507.79, 1,111,562.70 and 442,946.93

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Solution

The fourth proportional to 805,507.79, 1,111,562.70 and 442,946.93 is: 611,245.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,507.79 : 1,111,562.70 = 442,946.93 : x
  2. Step 2: Convert to fraction form
    805,507.79/1,111,562.70 = 442,946.93/x
  3. Step 3: Cross multiply
    805,507.79x = 1,111,562.70 × 442,946.93
  4. Step 4: Simplify right side
    805,507.79x = 492,363,285,467.51
  5. Step 5: Solve for x
    x = 492,363,285,467.51/805,507.79
  6. Step 6: Final answer
    x = 611,245.84

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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.