Home / 672,945.18-928,631.57-401,007.02

Finding the Fourth Proportional to 672,945.18, 928,631.57 and 401,007.02

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Solution

The fourth proportional to 672,945.18, 928,631.57 and 401,007.02 is: 553,370.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,945.18 : 928,631.57 = 401,007.02 : x
  2. Step 2: Convert to fraction form
    672,945.18/928,631.57 = 401,007.02/x
  3. Step 3: Cross multiply
    672,945.18x = 928,631.57 × 401,007.02
  4. Step 4: Simplify right side
    672,945.18x = 372,387,771,915.43
  5. Step 5: Solve for x
    x = 372,387,771,915.43/672,945.18
  6. Step 6: Final answer
    x = 553,370.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.