Home / 664,459.20-917,041.32-377,923.95

Finding the Fourth Proportional to 664,459.20, 917,041.32 and 377,923.95

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Solution

The fourth proportional to 664,459.20, 917,041.32 and 377,923.95 is: 521,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,459.20 : 917,041.32 = 377,923.95 : x
  2. Step 2: Convert to fraction form
    664,459.20/917,041.32 = 377,923.95/x
  3. Step 3: Cross multiply
    664,459.20x = 917,041.32 × 377,923.95
  4. Step 4: Simplify right side
    664,459.20x = 346,571,877,967.61
  5. Step 5: Solve for x
    x = 346,571,877,967.61/664,459.20
  6. Step 6: Final answer
    x = 521,584.89

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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.