Home / 529,948.80-731,985.66-384,521.22

Finding the Fourth Proportional to 529,948.80, 731,985.66 and 384,521.22

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Solution

The fourth proportional to 529,948.80, 731,985.66 and 384,521.22 is: 531,115.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,948.80 : 731,985.66 = 384,521.22 : x
  2. Step 2: Convert to fraction form
    529,948.80/731,985.66 = 384,521.22/x
  3. Step 3: Cross multiply
    529,948.80x = 731,985.66 × 384,521.22
  4. Step 4: Simplify right side
    529,948.80x = 281,464,019,005.71
  5. Step 5: Solve for x
    x = 281,464,019,005.71/529,948.80
  6. Step 6: Final answer
    x = 531,115.49

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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.