Home / 470,519.08-649,068.90-286,814.68

Finding the Fourth Proportional to 470,519.08, 649,068.90 and 286,814.68

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Solution

The fourth proportional to 470,519.08, 649,068.90 and 286,814.68 is: 395,653.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,519.08 : 649,068.90 = 286,814.68 : x
  2. Step 2: Convert to fraction form
    470,519.08/649,068.90 = 286,814.68/x
  3. Step 3: Cross multiply
    470,519.08x = 649,068.90 × 286,814.68
  4. Step 4: Simplify right side
    470,519.08x = 186,162,488,851.45
  5. Step 5: Solve for x
    x = 186,162,488,851.45/470,519.08
  6. Step 6: Final answer
    x = 395,653.43

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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.