Home / 830,715.72-1,146,770.40-486,503.82

Finding the Fourth Proportional to 830,715.72, 1,146,770.40 and 486,503.82

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Solution

The fourth proportional to 830,715.72, 1,146,770.40 and 486,503.82 is: 671,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,715.72 : 1,146,770.40 = 486,503.82 : x
  2. Step 2: Convert to fraction form
    830,715.72/1,146,770.40 = 486,503.82/x
  3. Step 3: Cross multiply
    830,715.72x = 1,146,770.40 × 486,503.82
  4. Step 4: Simplify right side
    830,715.72x = 557,908,180,262.93
  5. Step 5: Solve for x
    x = 557,908,180,262.93/830,715.72
  6. Step 6: Final answer
    x = 671,599.40

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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.