Home / 890,031.80-1,334,458.02-490,863.80

Finding the Fourth Proportional to 890,031.80, 1,334,458.02 and 490,863.80

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Solution

The fourth proportional to 890,031.80, 1,334,458.02 and 490,863.80 is: 735,970.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,031.80 : 1,334,458.02 = 490,863.80 : x
  2. Step 2: Convert to fraction form
    890,031.80/1,334,458.02 = 490,863.80/x
  3. Step 3: Cross multiply
    890,031.80x = 1,334,458.02 × 490,863.80
  4. Step 4: Simplify right side
    890,031.80x = 655,037,134,637.68
  5. Step 5: Solve for x
    x = 655,037,134,637.68/890,031.80
  6. Step 6: Final answer
    x = 735,970.48

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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.