Home / 1,071,423.72-1,478,186.82-657,818.28

Finding the Fourth Proportional to 1,071,423.72, 1,478,186.82 and 657,818.28

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Solution

The fourth proportional to 1,071,423.72, 1,478,186.82 and 657,818.28 is: 907,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,423.72 : 1,478,186.82 = 657,818.28 : x
  2. Step 2: Convert to fraction form
    1,071,423.72/1,478,186.82 = 657,818.28/x
  3. Step 3: Cross multiply
    1,071,423.72x = 1,478,186.82 × 657,818.28
  4. Step 4: Simplify right side
    1,071,423.72x = 972,378,311,451.07
  5. Step 5: Solve for x
    x = 972,378,311,451.07/1,071,423.72
  6. Step 6: Final answer
    x = 907,557.20

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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.