Home / 486,064.40-670,829.45-282,071.51

Finding the Fourth Proportional to 486,064.40, 670,829.45 and 282,071.51

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Solution

The fourth proportional to 486,064.40, 670,829.45 and 282,071.51 is: 389,293.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,064.40 : 670,829.45 = 282,071.51 : x
  2. Step 2: Convert to fraction form
    486,064.40/670,829.45 = 282,071.51/x
  3. Step 3: Cross multiply
    486,064.40x = 670,829.45 × 282,071.51
  4. Step 4: Simplify right side
    486,064.40x = 189,221,877,438.49
  5. Step 5: Solve for x
    x = 189,221,877,438.49/486,064.40
  6. Step 6: Final answer
    x = 389,293.85

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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.