Home / 817,345.40-1,225,968.72-304,911.86

Finding the Fourth Proportional to 817,345.40, 1,225,968.72 and 304,911.86

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Solution

The fourth proportional to 817,345.40, 1,225,968.72 and 304,911.86 is: 457,349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,345.40 : 1,225,968.72 = 304,911.86 : x
  2. Step 2: Convert to fraction form
    817,345.40/1,225,968.72 = 304,911.86/x
  3. Step 3: Cross multiply
    817,345.40x = 1,225,968.72 × 304,911.86
  4. Step 4: Simplify right side
    817,345.40x = 373,812,402,717.02
  5. Step 5: Solve for x
    x = 373,812,402,717.02/817,345.40
  6. Step 6: Final answer
    x = 457,349.37

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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.