Home / 642,826.59-887,095.74-352,434.68

Finding the Fourth Proportional to 642,826.59, 887,095.74 and 352,434.68

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Solution

The fourth proportional to 642,826.59, 887,095.74 and 352,434.68 is: 486,357.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,826.59 : 887,095.74 = 352,434.68 : x
  2. Step 2: Convert to fraction form
    642,826.59/887,095.74 = 352,434.68/x
  3. Step 3: Cross multiply
    642,826.59x = 887,095.74 × 352,434.68
  4. Step 4: Simplify right side
    642,826.59x = 312,643,303,256.26
  5. Step 5: Solve for x
    x = 312,643,303,256.26/642,826.59
  6. Step 6: Final answer
    x = 486,357.14

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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.