Home / 634,436.16-875,688.48-379,986.24

Finding the Fourth Proportional to 634,436.16, 875,688.48 and 379,986.24

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Solution

The fourth proportional to 634,436.16, 875,688.48 and 379,986.24 is: 524,480.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,436.16 : 875,688.48 = 379,986.24 : x
  2. Step 2: Convert to fraction form
    634,436.16/875,688.48 = 379,986.24/x
  3. Step 3: Cross multiply
    634,436.16x = 875,688.48 × 379,986.24
  4. Step 4: Simplify right side
    634,436.16x = 332,749,572,926.52
  5. Step 5: Solve for x
    x = 332,749,572,926.52/634,436.16
  6. Step 6: Final answer
    x = 524,480.78

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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.