Home / 673,528.60-929,629.02-387,215.02

Finding the Fourth Proportional to 673,528.60, 929,629.02 and 387,215.02

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Solution

The fourth proportional to 673,528.60, 929,629.02 and 387,215.02 is: 534,448.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,528.60 : 929,629.02 = 387,215.02 : x
  2. Step 2: Convert to fraction form
    673,528.60/929,629.02 = 387,215.02/x
  3. Step 3: Cross multiply
    673,528.60x = 929,629.02 × 387,215.02
  4. Step 4: Simplify right side
    673,528.60x = 359,966,319,571.88
  5. Step 5: Solve for x
    x = 359,966,319,571.88/673,528.60
  6. Step 6: Final answer
    x = 534,448.45

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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.