Home / 738,730.30-1,108,095.45-289,301.80

Finding the Fourth Proportional to 738,730.30, 1,108,095.45 and 289,301.80

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Solution

The fourth proportional to 738,730.30, 1,108,095.45 and 289,301.80 is: 433,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,730.30 : 1,108,095.45 = 289,301.80 : x
  2. Step 2: Convert to fraction form
    738,730.30/1,108,095.45 = 289,301.80/x
  3. Step 3: Cross multiply
    738,730.30x = 1,108,095.45 × 289,301.80
  4. Step 4: Simplify right side
    738,730.30x = 320,574,008,256.81
  5. Step 5: Solve for x
    x = 320,574,008,256.81/738,730.30
  6. Step 6: Final answer
    x = 433,952.70

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1.5x scale

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.