Home / 427,587.12-590,030.04-289,485.12

Finding the Fourth Proportional to 427,587.12, 590,030.04 and 289,485.12

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Solution

The fourth proportional to 427,587.12, 590,030.04 and 289,485.12 is: 399,462.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,587.12 : 590,030.04 = 289,485.12 : x
  2. Step 2: Convert to fraction form
    427,587.12/590,030.04 = 289,485.12/x
  3. Step 3: Cross multiply
    427,587.12x = 590,030.04 × 289,485.12
  4. Step 4: Simplify right side
    427,587.12x = 170,804,916,933.01
  5. Step 5: Solve for x
    x = 170,804,916,933.01/427,587.12
  6. Step 6: Final answer
    x = 399,462.26

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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.