Home / 897,909.16-1,239,140.74-490,037.22

Finding the Fourth Proportional to 897,909.16, 1,239,140.74 and 490,037.22

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Solution

The fourth proportional to 897,909.16, 1,239,140.74 and 490,037.22 is: 676,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,909.16 : 1,239,140.74 = 490,037.22 : x
  2. Step 2: Convert to fraction form
    897,909.16/1,239,140.74 = 490,037.22/x
  3. Step 3: Cross multiply
    897,909.16x = 1,239,140.74 × 490,037.22
  4. Step 4: Simplify right side
    897,909.16x = 607,225,083,418.34
  5. Step 5: Solve for x
    x = 607,225,083,418.34/897,909.16
  6. Step 6: Final answer
    x = 676,265.61

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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.