Home / 630,453.12-869,989.66-358,587.16

Finding the Fourth Proportional to 630,453.12, 869,989.66 and 358,587.16

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Solution

The fourth proportional to 630,453.12, 869,989.66 and 358,587.16 is: 494,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,453.12 : 869,989.66 = 358,587.16 : x
  2. Step 2: Convert to fraction form
    630,453.12/869,989.66 = 358,587.16/x
  3. Step 3: Cross multiply
    630,453.12x = 869,989.66 × 358,587.16
  4. Step 4: Simplify right side
    630,453.12x = 311,967,121,408.77
  5. Step 5: Solve for x
    x = 311,967,121,408.77/630,453.12
  6. Step 6: Final answer
    x = 494,830.01

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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.