Home / 775,868.72-1,070,802.12-436,402.64

Finding the Fourth Proportional to 775,868.72, 1,070,802.12 and 436,402.64

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Solution

The fourth proportional to 775,868.72, 1,070,802.12 and 436,402.64 is: 602,293.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,868.72 : 1,070,802.12 = 436,402.64 : x
  2. Step 2: Convert to fraction form
    775,868.72/1,070,802.12 = 436,402.64/x
  3. Step 3: Cross multiply
    775,868.72x = 1,070,802.12 × 436,402.64
  4. Step 4: Simplify right side
    775,868.72x = 467,300,872,085.60
  5. Step 5: Solve for x
    x = 467,300,872,085.60/775,868.72
  6. Step 6: Final answer
    x = 602,293.74

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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.