Home / 711,307.71-1,066,815.77-311,728.23

Finding the Fourth Proportional to 711,307.71, 1,066,815.77 and 311,728.23

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Solution

The fourth proportional to 711,307.71, 1,066,815.77 and 311,728.23 is: 467,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,307.71 : 1,066,815.77 = 311,728.23 : x
  2. Step 2: Convert to fraction form
    711,307.71/1,066,815.77 = 311,728.23/x
  3. Step 3: Cross multiply
    711,307.71x = 1,066,815.77 × 311,728.23
  4. Step 4: Simplify right side
    711,307.71x = 332,556,590,159.55
  5. Step 5: Solve for x
    x = 332,556,590,159.55/711,307.71
  6. Step 6: Final answer
    x = 467,528.45

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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.