Home / 630,364.48-869,784.01-375,739.36

Finding the Fourth Proportional to 630,364.48, 869,784.01 and 375,739.36

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Solution

The fourth proportional to 630,364.48, 869,784.01 and 375,739.36 is: 518,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,364.48 : 869,784.01 = 375,739.36 : x
  2. Step 2: Convert to fraction form
    630,364.48/869,784.01 = 375,739.36/x
  3. Step 3: Cross multiply
    630,364.48x = 869,784.01 × 375,739.36
  4. Step 4: Simplify right side
    630,364.48x = 326,812,087,255.63
  5. Step 5: Solve for x
    x = 326,812,087,255.63/630,364.48
  6. Step 6: Final answer
    x = 518,449.40

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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.