Home / 630,145.58-869,566.25-358,175.66

Finding the Fourth Proportional to 630,145.58, 869,566.25 and 358,175.66

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Solution

The fourth proportional to 630,145.58, 869,566.25 and 358,175.66 is: 494,262.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,145.58 : 869,566.25 = 358,175.66 : x
  2. Step 2: Convert to fraction form
    630,145.58/869,566.25 = 358,175.66/x
  3. Step 3: Cross multiply
    630,145.58x = 869,566.25 × 358,175.66
  4. Step 4: Simplify right side
    630,145.58x = 311,457,462,055.08
  5. Step 5: Solve for x
    x = 311,457,462,055.08/630,145.58
  6. Step 6: Final answer
    x = 494,262.71

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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.