Home / 516,415.02-712,788.06-290,133.42

Finding the Fourth Proportional to 516,415.02, 712,788.06 and 290,133.42

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Solution

The fourth proportional to 516,415.02, 712,788.06 and 290,133.42 is: 400,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,415.02 : 712,788.06 = 290,133.42 : x
  2. Step 2: Convert to fraction form
    516,415.02/712,788.06 = 290,133.42/x
  3. Step 3: Cross multiply
    516,415.02x = 712,788.06 × 290,133.42
  4. Step 4: Simplify right side
    516,415.02x = 206,803,637,582.97
  5. Step 5: Solve for x
    x = 206,803,637,582.97/516,415.02
  6. Step 6: Final answer
    x = 400,460.15

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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.