Home / 689,953.20-1,034,929.80-424,232.70

Finding the Fourth Proportional to 689,953.20, 1,034,929.80 and 424,232.70

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Solution

The fourth proportional to 689,953.20, 1,034,929.80 and 424,232.70 is: 636,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,953.20 : 1,034,929.80 = 424,232.70 : x
  2. Step 2: Convert to fraction form
    689,953.20/1,034,929.80 = 424,232.70/x
  3. Step 3: Cross multiply
    689,953.20x = 1,034,929.80 × 424,232.70
  4. Step 4: Simplify right side
    689,953.20x = 439,051,063,364.46
  5. Step 5: Solve for x
    x = 439,051,063,364.46/689,953.20
  6. Step 6: Final answer
    x = 636,349.05

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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.