Home / 1,029,148.76-1,420,225.28-626,740.76

Finding the Fourth Proportional to 1,029,148.76, 1,420,225.28 and 626,740.76

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Solution

The fourth proportional to 1,029,148.76, 1,420,225.28 and 626,740.76 is: 864,902.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,148.76 : 1,420,225.28 = 626,740.76 : x
  2. Step 2: Convert to fraction form
    1,029,148.76/1,420,225.28 = 626,740.76/x
  3. Step 3: Cross multiply
    1,029,148.76x = 1,420,225.28 × 626,740.76
  4. Step 4: Simplify right side
    1,029,148.76x = 890,113,071,358.41
  5. Step 5: Solve for x
    x = 890,113,071,358.41/1,029,148.76
  6. Step 6: Final answer
    x = 864,902.24

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Double scale
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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.