Home / 689,618.37-1,034,417.16-310,271.21

Finding the Fourth Proportional to 689,618.37, 1,034,417.16 and 310,271.21

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Solution

The fourth proportional to 689,618.37, 1,034,417.16 and 310,271.21 is: 465,402.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,618.37 : 1,034,417.16 = 310,271.21 : x
  2. Step 2: Convert to fraction form
    689,618.37/1,034,417.16 = 310,271.21/x
  3. Step 3: Cross multiply
    689,618.37x = 1,034,417.16 × 310,271.21
  4. Step 4: Simplify right side
    689,618.37x = 320,949,857,154.52
  5. Step 5: Solve for x
    x = 320,949,857,154.52/689,618.37
  6. Step 6: Final answer
    x = 465,402.13

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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.