Home / 759,862.32-1,048,636.44-420,362.16

Finding the Fourth Proportional to 759,862.32, 1,048,636.44 and 420,362.16

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Solution

The fourth proportional to 759,862.32, 1,048,636.44 and 420,362.16 is: 580,114.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,862.32 : 1,048,636.44 = 420,362.16 : x
  2. Step 2: Convert to fraction form
    759,862.32/1,048,636.44 = 420,362.16/x
  3. Step 3: Cross multiply
    759,862.32x = 1,048,636.44 × 420,362.16
  4. Step 4: Simplify right side
    759,862.32x = 440,807,078,973.11
  5. Step 5: Solve for x
    x = 440,807,078,973.11/759,862.32
  6. Step 6: Final answer
    x = 580,114.41

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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.