Home / 730,669.32-1,008,291.96-399,519.20

Finding the Fourth Proportional to 730,669.32, 1,008,291.96 and 399,519.20

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Solution

The fourth proportional to 730,669.32, 1,008,291.96 and 399,519.20 is: 551,319.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,669.32 : 1,008,291.96 = 399,519.20 : x
  2. Step 2: Convert to fraction form
    730,669.32/1,008,291.96 = 399,519.20/x
  3. Step 3: Cross multiply
    730,669.32x = 1,008,291.96 × 399,519.20
  4. Step 4: Simplify right side
    730,669.32x = 402,831,999,746.36
  5. Step 5: Solve for x
    x = 402,831,999,746.36/730,669.32
  6. Step 6: Final answer
    x = 551,319.17

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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.