Home / 557,126.02-768,852.30-315,403.66

Finding the Fourth Proportional to 557,126.02, 768,852.30 and 315,403.66

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Solution

The fourth proportional to 557,126.02, 768,852.30 and 315,403.66 is: 435,267.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,126.02 : 768,852.30 = 315,403.66 : x
  2. Step 2: Convert to fraction form
    557,126.02/768,852.30 = 315,403.66/x
  3. Step 3: Cross multiply
    557,126.02x = 768,852.30 × 315,403.66
  4. Step 4: Simplify right side
    557,126.02x = 242,498,829,419.42
  5. Step 5: Solve for x
    x = 242,498,829,419.42/557,126.02
  6. Step 6: Final answer
    x = 435,267.46

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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.