Home / 775,477.72-1,070,128.02-435,938.68

Finding the Fourth Proportional to 775,477.72, 1,070,128.02 and 435,938.68

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Solution

The fourth proportional to 775,477.72, 1,070,128.02 and 435,938.68 is: 601,577.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,477.72 : 1,070,128.02 = 435,938.68 : x
  2. Step 2: Convert to fraction form
    775,477.72/1,070,128.02 = 435,938.68/x
  3. Step 3: Cross multiply
    775,477.72x = 1,070,128.02 × 435,938.68
  4. Step 4: Simplify right side
    775,477.72x = 466,510,196,469.81
  5. Step 5: Solve for x
    x = 466,510,196,469.81/775,477.72
  6. Step 6: Final answer
    x = 601,577.82

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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.