Home / 697,142.40-1,045,710.08-379,314.72

Finding the Fourth Proportional to 697,142.40, 1,045,710.08 and 379,314.72

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Solution

The fourth proportional to 697,142.40, 1,045,710.08 and 379,314.72 is: 568,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,142.40 : 1,045,710.08 = 379,314.72 : x
  2. Step 2: Convert to fraction form
    697,142.40/1,045,710.08 = 379,314.72/x
  3. Step 3: Cross multiply
    697,142.40x = 1,045,710.08 × 379,314.72
  4. Step 4: Simplify right side
    697,142.40x = 396,653,226,196.38
  5. Step 5: Solve for x
    x = 396,653,226,196.38/697,142.40
  6. Step 6: Final answer
    x = 568,970.16

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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.