Home / 513,320.76-708,384.69-286,966.26

Finding the Fourth Proportional to 513,320.76, 708,384.69 and 286,966.26

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Solution

The fourth proportional to 513,320.76, 708,384.69 and 286,966.26 is: 396,014.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,320.76 : 708,384.69 = 286,966.26 : x
  2. Step 2: Convert to fraction form
    513,320.76/708,384.69 = 286,966.26/x
  3. Step 3: Cross multiply
    513,320.76x = 708,384.69 × 286,966.26
  4. Step 4: Simplify right side
    513,320.76x = 203,282,505,130.56
  5. Step 5: Solve for x
    x = 203,282,505,130.56/513,320.76
  6. Step 6: Final answer
    x = 396,014.58

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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.