Home / 916,251.39-1,264,384.08-508,348.89

Finding the Fourth Proportional to 916,251.39, 1,264,384.08 and 508,348.89

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Solution

The fourth proportional to 916,251.39, 1,264,384.08 and 508,348.89 is: 701,497.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,251.39 : 1,264,384.08 = 508,348.89 : x
  2. Step 2: Convert to fraction form
    916,251.39/1,264,384.08 = 508,348.89/x
  3. Step 3: Cross multiply
    916,251.39x = 1,264,384.08 × 508,348.89
  4. Step 4: Simplify right side
    916,251.39x = 642,748,243,601.67
  5. Step 5: Solve for x
    x = 642,748,243,601.67/916,251.39
  6. Step 6: Final answer
    x = 701,497.70

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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.