Home / 397,869.22-549,307.59-276,966.46

Finding the Fourth Proportional to 397,869.22, 549,307.59 and 276,966.46

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Solution

The fourth proportional to 397,869.22, 549,307.59 and 276,966.46 is: 382,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,869.22 : 549,307.59 = 276,966.46 : x
  2. Step 2: Convert to fraction form
    397,869.22/549,307.59 = 276,966.46/x
  3. Step 3: Cross multiply
    397,869.22x = 549,307.59 × 276,966.46
  4. Step 4: Simplify right side
    397,869.22x = 152,139,778,653.43
  5. Step 5: Solve for x
    x = 152,139,778,653.43/397,869.22
  6. Step 6: Final answer
    x = 382,386.40

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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.