Home / 630,121.95-869,533.65-358,152.03

Finding the Fourth Proportional to 630,121.95, 869,533.65 and 358,152.03

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Solution

The fourth proportional to 630,121.95, 869,533.65 and 358,152.03 is: 494,230.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,121.95 : 869,533.65 = 358,152.03 : x
  2. Step 2: Convert to fraction form
    630,121.95/869,533.65 = 358,152.03/x
  3. Step 3: Cross multiply
    630,121.95x = 869,533.65 × 358,152.03
  4. Step 4: Simplify right side
    630,121.95x = 311,425,241,900.81
  5. Step 5: Solve for x
    x = 311,425,241,900.81/630,121.95
  6. Step 6: Final answer
    x = 494,230.11

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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.