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Finding the Fourth Proportional to 630,113.81, 869,303.00 and 364,724.87

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Solution

The fourth proportional to 630,113.81, 869,303.00 and 364,724.87 is: 503,173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,113.81 : 869,303.00 = 364,724.87 : x
  2. Step 2: Convert to fraction form
    630,113.81/869,303.00 = 364,724.87/x
  3. Step 3: Cross multiply
    630,113.81x = 869,303.00 × 364,724.87
  4. Step 4: Simplify right side
    630,113.81x = 317,056,420,230.91
  5. Step 5: Solve for x
    x = 317,056,420,230.91/630,113.81
  6. Step 6: Final answer
    x = 503,173.26

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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.