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Finding the Fourth Proportional to 775,343.74, 1,070,069.74 and 469,526.46

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Solution

The fourth proportional to 775,343.74, 1,070,069.74 and 469,526.46 is: 648,004.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,343.74 : 1,070,069.74 = 469,526.46 : x
  2. Step 2: Convert to fraction form
    775,343.74/1,070,069.74 = 469,526.46/x
  3. Step 3: Cross multiply
    775,343.74x = 1,070,069.74 × 469,526.46
  4. Step 4: Simplify right side
    775,343.74x = 502,426,056,975.32
  5. Step 5: Solve for x
    x = 502,426,056,975.32/775,343.74
  6. Step 6: Final answer
    x = 648,004.27

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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.