Home / 877,465.76-1,316,032.18-427,734.32

Finding the Fourth Proportional to 877,465.76, 1,316,032.18 and 427,734.32

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Solution

The fourth proportional to 877,465.76, 1,316,032.18 and 427,734.32 is: 641,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,465.76 : 1,316,032.18 = 427,734.32 : x
  2. Step 2: Convert to fraction form
    877,465.76/1,316,032.18 = 427,734.32/x
  3. Step 3: Cross multiply
    877,465.76x = 1,316,032.18 × 427,734.32
  4. Step 4: Simplify right side
    877,465.76x = 562,912,121,960.92
  5. Step 5: Solve for x
    x = 562,912,121,960.92/877,465.76
  6. Step 6: Final answer
    x = 641,520.33

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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.