Home / 528,051.20-792,076.80-317,926.40

Finding the Fourth Proportional to 528,051.20, 792,076.80 and 317,926.40

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Solution

The fourth proportional to 528,051.20, 792,076.80 and 317,926.40 is: 476,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,051.20 : 792,076.80 = 317,926.40 : x
  2. Step 2: Convert to fraction form
    528,051.20/792,076.80 = 317,926.40/x
  3. Step 3: Cross multiply
    528,051.20x = 792,076.80 × 317,926.40
  4. Step 4: Simplify right side
    528,051.20x = 251,822,125,547.52
  5. Step 5: Solve for x
    x = 251,822,125,547.52/528,051.20
  6. Step 6: Final answer
    x = 476,889.60

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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.