Home / 917,883.40-1,376,290.50-356,261.80

Finding the Fourth Proportional to 917,883.40, 1,376,290.50 and 356,261.80

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Solution

The fourth proportional to 917,883.40, 1,376,290.50 and 356,261.80 is: 534,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,883.40 : 1,376,290.50 = 356,261.80 : x
  2. Step 2: Convert to fraction form
    917,883.40/1,376,290.50 = 356,261.80/x
  3. Step 3: Cross multiply
    917,883.40x = 1,376,290.50 × 356,261.80
  4. Step 4: Simplify right side
    917,883.40x = 490,319,730,852.90
  5. Step 5: Solve for x
    x = 490,319,730,852.90/917,883.40
  6. Step 6: Final answer
    x = 534,185.20

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1.5x scale

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.