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Finding the Fourth Proportional to 659,666.35, 910,262.76 and 369,293.80

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Solution

The fourth proportional to 659,666.35, 910,262.76 and 369,293.80 is: 509,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,666.35 : 910,262.76 = 369,293.80 : x
  2. Step 2: Convert to fraction form
    659,666.35/910,262.76 = 369,293.80/x
  3. Step 3: Cross multiply
    659,666.35x = 910,262.76 × 369,293.80
  4. Step 4: Simplify right side
    659,666.35x = 336,154,393,638.89
  5. Step 5: Solve for x
    x = 336,154,393,638.89/659,666.35
  6. Step 6: Final answer
    x = 509,582.45

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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.