Home / 670,818.10-1,007,393.55-355,890.10

Finding the Fourth Proportional to 670,818.10, 1,007,393.55 and 355,890.10

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Solution

The fourth proportional to 670,818.10, 1,007,393.55 and 355,890.10 is: 534,453.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,818.10 : 1,007,393.55 = 355,890.10 : x
  2. Step 2: Convert to fraction form
    670,818.10/1,007,393.55 = 355,890.10/x
  3. Step 3: Cross multiply
    670,818.10x = 1,007,393.55 × 355,890.10
  4. Step 4: Simplify right side
    670,818.10x = 358,521,391,248.86
  5. Step 5: Solve for x
    x = 358,521,391,248.86/670,818.10
  6. Step 6: Final answer
    x = 534,453.96

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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.