Home / 775,172.08-1,069,607.88-430,998.40

Finding the Fourth Proportional to 775,172.08, 1,069,607.88 and 430,998.40

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Solution

The fourth proportional to 775,172.08, 1,069,607.88 and 430,998.40 is: 594,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,172.08 : 1,069,607.88 = 430,998.40 : x
  2. Step 2: Convert to fraction form
    775,172.08/1,069,607.88 = 430,998.40/x
  3. Step 3: Cross multiply
    775,172.08x = 1,069,607.88 × 430,998.40
  4. Step 4: Simplify right side
    775,172.08x = 460,999,284,907.39
  5. Step 5: Solve for x
    x = 460,999,284,907.39/775,172.08
  6. Step 6: Final answer
    x = 594,705.74

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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.