Home / 671,445.12-926,718.56-384,967.20

Finding the Fourth Proportional to 671,445.12, 926,718.56 and 384,967.20

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Solution

The fourth proportional to 671,445.12, 926,718.56 and 384,967.20 is: 531,326.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,445.12 : 926,718.56 = 384,967.20 : x
  2. Step 2: Convert to fraction form
    671,445.12/926,718.56 = 384,967.20/x
  3. Step 3: Cross multiply
    671,445.12x = 926,718.56 × 384,967.20
  4. Step 4: Simplify right side
    671,445.12x = 356,756,249,231.23
  5. Step 5: Solve for x
    x = 356,756,249,231.23/671,445.12
  6. Step 6: Final answer
    x = 531,326.00

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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.