Home / 740,281.08-1,021,591.12-400,749.34

Finding the Fourth Proportional to 740,281.08, 1,021,591.12 and 400,749.34

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Solution

The fourth proportional to 740,281.08, 1,021,591.12 and 400,749.34 is: 553,035.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,281.08 : 1,021,591.12 = 400,749.34 : x
  2. Step 2: Convert to fraction form
    740,281.08/1,021,591.12 = 400,749.34/x
  3. Step 3: Cross multiply
    740,281.08x = 1,021,591.12 × 400,749.34
  4. Step 4: Simplify right side
    740,281.08x = 409,401,967,089.86
  5. Step 5: Solve for x
    x = 409,401,967,089.86/740,281.08
  6. Step 6: Final answer
    x = 553,035.84

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Double scale
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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.