Home / 711,295.70-1,066,943.55-312,127.70

Finding the Fourth Proportional to 711,295.70, 1,066,943.55 and 312,127.70

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Solution

The fourth proportional to 711,295.70, 1,066,943.55 and 312,127.70 is: 468,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,295.70 : 1,066,943.55 = 312,127.70 : x
  2. Step 2: Convert to fraction form
    711,295.70/1,066,943.55 = 312,127.70/x
  3. Step 3: Cross multiply
    711,295.70x = 1,066,943.55 × 312,127.70
  4. Step 4: Simplify right side
    711,295.70x = 333,022,636,291.34
  5. Step 5: Solve for x
    x = 333,022,636,291.34/711,295.70
  6. Step 6: Final answer
    x = 468,191.55

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Double scale
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Similar ratio
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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.