Home / 465,307.07-642,109.77-258,574.76

Finding the Fourth Proportional to 465,307.07, 642,109.77 and 258,574.76

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Solution

The fourth proportional to 465,307.07, 642,109.77 and 258,574.76 is: 356,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,307.07 : 642,109.77 = 258,574.76 : x
  2. Step 2: Convert to fraction form
    465,307.07/642,109.77 = 258,574.76/x
  3. Step 3: Cross multiply
    465,307.07x = 642,109.77 × 258,574.76
  4. Step 4: Simplify right side
    465,307.07x = 166,033,379,671.41
  5. Step 5: Solve for x
    x = 166,033,379,671.41/465,307.07
  6. Step 6: Final answer
    x = 356,825.40

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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.