Home / 830,139.84-1,245,372.48-297,518.40

Finding the Fourth Proportional to 830,139.84, 1,245,372.48 and 297,518.40

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Solution

The fourth proportional to 830,139.84, 1,245,372.48 and 297,518.40 is: 446,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,139.84 : 1,245,372.48 = 297,518.40 : x
  2. Step 2: Convert to fraction form
    830,139.84/1,245,372.48 = 297,518.40/x
  3. Step 3: Cross multiply
    830,139.84x = 1,245,372.48 × 297,518.40
  4. Step 4: Simplify right side
    830,139.84x = 370,521,227,653.63
  5. Step 5: Solve for x
    x = 370,521,227,653.63/830,139.84
  6. Step 6: Final answer
    x = 446,335.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.