Home / 691,404.80-1,037,107.20-452,256.35

Finding the Fourth Proportional to 691,404.80, 1,037,107.20 and 452,256.35

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Solution

The fourth proportional to 691,404.80, 1,037,107.20 and 452,256.35 is: 678,384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,404.80 : 1,037,107.20 = 452,256.35 : x
  2. Step 2: Convert to fraction form
    691,404.80/1,037,107.20 = 452,256.35/x
  3. Step 3: Cross multiply
    691,404.80x = 1,037,107.20 × 452,256.35
  4. Step 4: Simplify right side
    691,404.80x = 469,038,316,830.72
  5. Step 5: Solve for x
    x = 469,038,316,830.72/691,404.80
  6. Step 6: Final answer
    x = 678,384.53

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Double scale
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Similar ratio
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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.