Home / 689,065.08-950,696.10-402,378.36

Finding the Fourth Proportional to 689,065.08, 950,696.10 and 402,378.36

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Solution

The fourth proportional to 689,065.08, 950,696.10 and 402,378.36 is: 555,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,065.08 : 950,696.10 = 402,378.36 : x
  2. Step 2: Convert to fraction form
    689,065.08/950,696.10 = 402,378.36/x
  3. Step 3: Cross multiply
    689,065.08x = 950,696.10 × 402,378.36
  4. Step 4: Simplify right side
    689,065.08x = 382,539,537,576.40
  5. Step 5: Solve for x
    x = 382,539,537,576.40/689,065.08
  6. Step 6: Final answer
    x = 555,157.34

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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.