Home / 948,125.81-1,421,409.60-442,436.72

Finding the Fourth Proportional to 948,125.81, 1,421,409.60 and 442,436.72

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Solution

The fourth proportional to 948,125.81, 1,421,409.60 and 442,436.72 is: 663,291.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,125.81 : 1,421,409.60 = 442,436.72 : x
  2. Step 2: Convert to fraction form
    948,125.81/1,421,409.60 = 442,436.72/x
  3. Step 3: Cross multiply
    948,125.81x = 1,421,409.60 × 442,436.72
  4. Step 4: Simplify right side
    948,125.81x = 628,883,801,200.51
  5. Step 5: Solve for x
    x = 628,883,801,200.51/948,125.81
  6. Step 6: Final answer
    x = 663,291.51

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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.