Home / 462,526.20-638,312.40-261,322.20

Finding the Fourth Proportional to 462,526.20, 638,312.40 and 261,322.20

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Solution

The fourth proportional to 462,526.20, 638,312.40 and 261,322.20 is: 360,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,526.20 : 638,312.40 = 261,322.20 : x
  2. Step 2: Convert to fraction form
    462,526.20/638,312.40 = 261,322.20/x
  3. Step 3: Cross multiply
    462,526.20x = 638,312.40 × 261,322.20
  4. Step 4: Simplify right side
    462,526.20x = 166,805,200,655.28
  5. Step 5: Solve for x
    x = 166,805,200,655.28/462,526.20
  6. Step 6: Final answer
    x = 360,639.46

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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.