Home / 889,985.80-1,334,389.10-490,817.80

Finding the Fourth Proportional to 889,985.80, 1,334,389.10 and 490,817.80

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Solution

The fourth proportional to 889,985.80, 1,334,389.10 and 490,817.80 is: 735,901.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,985.80 : 1,334,389.10 = 490,817.80 : x
  2. Step 2: Convert to fraction form
    889,985.80/1,334,389.10 = 490,817.80/x
  3. Step 3: Cross multiply
    889,985.80x = 1,334,389.10 × 490,817.80
  4. Step 4: Simplify right side
    889,985.80x = 654,941,922,405.98
  5. Step 5: Solve for x
    x = 654,941,922,405.98/889,985.80
  6. Step 6: Final answer
    x = 735,901.54

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Double scale
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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.