Home / 644,804.90-966,746.55-289,528.10

Finding the Fourth Proportional to 644,804.90, 966,746.55 and 289,528.10

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Solution

The fourth proportional to 644,804.90, 966,746.55 and 289,528.10 is: 434,085.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,804.90 : 966,746.55 = 289,528.10 : x
  2. Step 2: Convert to fraction form
    644,804.90/966,746.55 = 289,528.10/x
  3. Step 3: Cross multiply
    644,804.90x = 966,746.55 × 289,528.10
  4. Step 4: Simplify right side
    644,804.90x = 279,900,291,803.06
  5. Step 5: Solve for x
    x = 279,900,291,803.06/644,804.90
  6. Step 6: Final answer
    x = 434,085.24

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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.