Home / 697,020-961,739.28-410,435.52

Finding the Fourth Proportional to 697,020, 961,739.28 and 410,435.52

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Solution

The fourth proportional to 697,020, 961,739.28 and 410,435.52 is: 566,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,020 : 961,739.28 = 410,435.52 : x
  2. Step 2: Convert to fraction form
    697,020/961,739.28 = 410,435.52/x
  3. Step 3: Cross multiply
    697,020x = 961,739.28 × 410,435.52
  4. Step 4: Simplify right side
    697,020x = 394,731,961,491.23
  5. Step 5: Solve for x
    x = 394,731,961,491.23/697,020
  6. Step 6: Final answer
    x = 566,313.68

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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.