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Finding the Fourth Proportional to 403,547.70, 556,854.63 and 248,474.40

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Solution

The fourth proportional to 403,547.70, 556,854.63 and 248,474.40 is: 342,869.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,547.70 : 556,854.63 = 248,474.40 : x
  2. Step 2: Convert to fraction form
    403,547.70/556,854.63 = 248,474.40/x
  3. Step 3: Cross multiply
    403,547.70x = 556,854.63 × 248,474.40
  4. Step 4: Simplify right side
    403,547.70x = 138,364,120,076.47
  5. Step 5: Solve for x
    x = 138,364,120,076.47/403,547.70
  6. Step 6: Final answer
    x = 342,869.31

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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.