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Finding the Fourth Proportional to 436,307.89, 601,608.47 and 307,205.10

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Solution

The fourth proportional to 436,307.89, 601,608.47 and 307,205.10 is: 423,593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,307.89 : 601,608.47 = 307,205.10 : x
  2. Step 2: Convert to fraction form
    436,307.89/601,608.47 = 307,205.10/x
  3. Step 3: Cross multiply
    436,307.89x = 601,608.47 × 307,205.10
  4. Step 4: Simplify right side
    436,307.89x = 184,817,186,959.15
  5. Step 5: Solve for x
    x = 184,817,186,959.15/436,307.89
  6. Step 6: Final answer
    x = 423,593.50

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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.