Home / 411,501.48-617,247.78-312,271.08

Finding the Fourth Proportional to 411,501.48, 617,247.78 and 312,271.08

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Solution

The fourth proportional to 411,501.48, 617,247.78 and 312,271.08 is: 468,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,501.48 : 617,247.78 = 312,271.08 : x
  2. Step 2: Convert to fraction form
    411,501.48/617,247.78 = 312,271.08/x
  3. Step 3: Cross multiply
    411,501.48x = 617,247.78 × 312,271.08
  4. Step 4: Simplify right side
    411,501.48x = 192,748,630,888.20
  5. Step 5: Solve for x
    x = 192,748,630,888.20/411,501.48
  6. Step 6: Final answer
    x = 468,403.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.