Home / 390,669.02-588,931.64-364,628.96

Finding the Fourth Proportional to 390,669.02, 588,931.64 and 364,628.96

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Solution

The fourth proportional to 390,669.02, 588,931.64 and 364,628.96 is: 549,676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,669.02 : 588,931.64 = 364,628.96 : x
  2. Step 2: Convert to fraction form
    390,669.02/588,931.64 = 364,628.96/x
  3. Step 3: Cross multiply
    390,669.02x = 588,931.64 × 364,628.96
  4. Step 4: Simplify right side
    390,669.02x = 214,741,526,636.49
  5. Step 5: Solve for x
    x = 214,741,526,636.49/390,669.02
  6. Step 6: Final answer
    x = 549,676.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.