Home / 632,637.80-947,574.30-491,287.40

Finding the Fourth Proportional to 632,637.80, 947,574.30 and 491,287.40

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Solution

The fourth proportional to 632,637.80, 947,574.30 and 491,287.40 is: 735,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,637.80 : 947,574.30 = 491,287.40 : x
  2. Step 2: Convert to fraction form
    632,637.80/947,574.30 = 491,287.40/x
  3. Step 3: Cross multiply
    632,637.80x = 947,574.30 × 491,287.40
  4. Step 4: Simplify right side
    632,637.80x = 465,531,314,153.82
  5. Step 5: Solve for x
    x = 465,531,314,153.82/632,637.80
  6. Step 6: Final answer
    x = 735,857.57

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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.