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Finding the Fourth Proportional to 586,604.93, 809,514.81 and 318,332.93

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Solution

The fourth proportional to 586,604.93, 809,514.81 and 318,332.93 is: 439,299.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,604.93 : 809,514.81 = 318,332.93 : x
  2. Step 2: Convert to fraction form
    586,604.93/809,514.81 = 318,332.93/x
  3. Step 3: Cross multiply
    586,604.93x = 809,514.81 × 318,332.93
  4. Step 4: Simplify right side
    586,604.93x = 257,695,221,345.69
  5. Step 5: Solve for x
    x = 257,695,221,345.69/586,604.93
  6. Step 6: Final answer
    x = 439,299.45

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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.