Home / 916,146.86-1,264,285.87-508,256.78

Finding the Fourth Proportional to 916,146.86, 1,264,285.87 and 508,256.78

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Solution

The fourth proportional to 916,146.86, 1,264,285.87 and 508,256.78 is: 701,396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,146.86 : 1,264,285.87 = 508,256.78 : x
  2. Step 2: Convert to fraction form
    916,146.86/1,264,285.87 = 508,256.78/x
  3. Step 3: Cross multiply
    916,146.86x = 1,264,285.87 × 508,256.78
  4. Step 4: Simplify right side
    916,146.86x = 642,581,857,693.63
  5. Step 5: Solve for x
    x = 642,581,857,693.63/916,146.86
  6. Step 6: Final answer
    x = 701,396.13

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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.