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Finding the Fourth Proportional to 626,097.60, 939,130.74 and 342,064.08

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Solution

The fourth proportional to 626,097.60, 939,130.74 and 342,064.08 is: 513,087.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,097.60 : 939,130.74 = 342,064.08 : x
  2. Step 2: Convert to fraction form
    626,097.60/939,130.74 = 342,064.08/x
  3. Step 3: Cross multiply
    626,097.60x = 939,130.74 × 342,064.08
  4. Step 4: Simplify right side
    626,097.60x = 321,242,892,577.82
  5. Step 5: Solve for x
    x = 321,242,892,577.82/626,097.60
  6. Step 6: Final answer
    x = 513,087.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.