Home / 728,794.04-1,005,739.47-402,118.34

Finding the Fourth Proportional to 728,794.04, 1,005,739.47 and 402,118.34

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Solution

The fourth proportional to 728,794.04, 1,005,739.47 and 402,118.34 is: 554,925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,794.04 : 1,005,739.47 = 402,118.34 : x
  2. Step 2: Convert to fraction form
    728,794.04/1,005,739.47 = 402,118.34/x
  3. Step 3: Cross multiply
    728,794.04x = 1,005,739.47 × 402,118.34
  4. Step 4: Simplify right side
    728,794.04x = 404,426,281,120.18
  5. Step 5: Solve for x
    x = 404,426,281,120.18/728,794.04
  6. Step 6: Final answer
    x = 554,925.34

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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.