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Finding the Fourth Proportional to 403,554.84, 556,959 and 260,730.36

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Solution

The fourth proportional to 403,554.84, 556,959 and 260,730.36 is: 359,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,554.84 : 556,959 = 260,730.36 : x
  2. Step 2: Convert to fraction form
    403,554.84/556,959 = 260,730.36/x
  3. Step 3: Cross multiply
    403,554.84x = 556,959 × 260,730.36
  4. Step 4: Simplify right side
    403,554.84x = 145,216,120,575.24
  5. Step 5: Solve for x
    x = 145,216,120,575.24/403,554.84
  6. Step 6: Final answer
    x = 359,842.35

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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.