Home / 747,019.31-1,030,884.48-407,485.13

Finding the Fourth Proportional to 747,019.31, 1,030,884.48 and 407,485.13

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Solution

The fourth proportional to 747,019.31, 1,030,884.48 and 407,485.13 is: 562,328.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,019.31 : 1,030,884.48 = 407,485.13 : x
  2. Step 2: Convert to fraction form
    747,019.31/1,030,884.48 = 407,485.13/x
  3. Step 3: Cross multiply
    747,019.31x = 1,030,884.48 × 407,485.13
  4. Step 4: Simplify right side
    747,019.31x = 420,070,091,193.36
  5. Step 5: Solve for x
    x = 420,070,091,193.36/747,019.31
  6. Step 6: Final answer
    x = 562,328.29

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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.