Home / 830,992.84-1,146,858.28-487,117.74

Finding the Fourth Proportional to 830,992.84, 1,146,858.28 and 487,117.74

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Solution

The fourth proportional to 830,992.84, 1,146,858.28 and 487,117.74 is: 672,274.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,992.84 : 1,146,858.28 = 487,117.74 : x
  2. Step 2: Convert to fraction form
    830,992.84/1,146,858.28 = 487,117.74/x
  3. Step 3: Cross multiply
    830,992.84x = 1,146,858.28 × 487,117.74
  4. Step 4: Simplify right side
    830,992.84x = 558,655,013,453.89
  5. Step 5: Solve for x
    x = 558,655,013,453.89/830,992.84
  6. Step 6: Final answer
    x = 672,274.16

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Double scale
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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.