Home / 669,712.80-1,004,666.40-314,738.40

Finding the Fourth Proportional to 669,712.80, 1,004,666.40 and 314,738.40

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Solution

The fourth proportional to 669,712.80, 1,004,666.40 and 314,738.40 is: 472,153.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,712.80 : 1,004,666.40 = 314,738.40 : x
  2. Step 2: Convert to fraction form
    669,712.80/1,004,666.40 = 314,738.40/x
  3. Step 3: Cross multiply
    669,712.80x = 1,004,666.40 × 314,738.40
  4. Step 4: Simplify right side
    669,712.80x = 316,207,095,269.76
  5. Step 5: Solve for x
    x = 316,207,095,269.76/669,712.80
  6. Step 6: Final answer
    x = 472,153.28

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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.