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Finding the Fourth Proportional to 604,698.78, 834,518.80 and 346,618.71

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Solution

The fourth proportional to 604,698.78, 834,518.80 and 346,618.71 is: 478,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,698.78 : 834,518.80 = 346,618.71 : x
  2. Step 2: Convert to fraction form
    604,698.78/834,518.80 = 346,618.71/x
  3. Step 3: Cross multiply
    604,698.78x = 834,518.80 × 346,618.71
  4. Step 4: Simplify right side
    604,698.78x = 289,259,830,360.02
  5. Step 5: Solve for x
    x = 289,259,830,360.02/604,698.78
  6. Step 6: Final answer
    x = 478,353.58

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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.