Home / 626,628.20-864,746.18-340,148.29

Finding the Fourth Proportional to 626,628.20, 864,746.18 and 340,148.29

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Solution

The fourth proportional to 626,628.20, 864,746.18 and 340,148.29 is: 469,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,628.20 : 864,746.18 = 340,148.29 : x
  2. Step 2: Convert to fraction form
    626,628.20/864,746.18 = 340,148.29/x
  3. Step 3: Cross multiply
    626,628.20x = 864,746.18 × 340,148.29
  4. Step 4: Simplify right side
    626,628.20x = 294,141,931,013.28
  5. Step 5: Solve for x
    x = 294,141,931,013.28/626,628.20
  6. Step 6: Final answer
    x = 469,404.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.