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Finding the Fourth Proportional to 652,478.54, 979,433.71 and 518,404.28

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Solution

The fourth proportional to 652,478.54, 979,433.71 and 518,404.28 is: 778,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,478.54 : 979,433.71 = 518,404.28 : x
  2. Step 2: Convert to fraction form
    652,478.54/979,433.71 = 518,404.28/x
  3. Step 3: Cross multiply
    652,478.54x = 979,433.71 × 518,404.28
  4. Step 4: Simplify right side
    652,478.54x = 507,742,621,047.10
  5. Step 5: Solve for x
    x = 507,742,621,047.10/652,478.54
  6. Step 6: Final answer
    x = 778,175.20

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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.