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Finding the Fourth Proportional to 669,720.09, 924,220.62 and 363,802.40

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Solution

The fourth proportional to 669,720.09, 924,220.62 and 363,802.40 is: 502,051.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,720.09 : 924,220.62 = 363,802.40 : x
  2. Step 2: Convert to fraction form
    669,720.09/924,220.62 = 363,802.40/x
  3. Step 3: Cross multiply
    669,720.09x = 924,220.62 × 363,802.40
  4. Step 4: Simplify right side
    669,720.09x = 336,233,675,064.39
  5. Step 5: Solve for x
    x = 336,233,675,064.39/669,720.09
  6. Step 6: Final answer
    x = 502,051.05

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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.