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Finding the Fourth Proportional to 630,595.47, 869,922 and 372,299.43

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Solution

The fourth proportional to 630,595.47, 869,922 and 372,299.43 is: 513,596.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,595.47 : 869,922 = 372,299.43 : x
  2. Step 2: Convert to fraction form
    630,595.47/869,922 = 372,299.43/x
  3. Step 3: Cross multiply
    630,595.47x = 869,922 × 372,299.43
  4. Step 4: Simplify right side
    630,595.47x = 323,871,464,744.46
  5. Step 5: Solve for x
    x = 323,871,464,744.46/630,595.47
  6. Step 6: Final answer
    x = 513,596.24

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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.