Home / 652,827.40-979,228.14-429,597.88

Finding the Fourth Proportional to 652,827.40, 979,228.14 and 429,597.88

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Solution

The fourth proportional to 652,827.40, 979,228.14 and 429,597.88 is: 644,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,827.40 : 979,228.14 = 429,597.88 : x
  2. Step 2: Convert to fraction form
    652,827.40/979,228.14 = 429,597.88/x
  3. Step 3: Cross multiply
    652,827.40x = 979,228.14 × 429,597.88
  4. Step 4: Simplify right side
    652,827.40x = 420,674,332,980.34
  5. Step 5: Solve for x
    x = 420,674,332,980.34/652,827.40
  6. Step 6: Final answer
    x = 644,388.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.