Home / 977,621.58-1,349,114.67-569,964.78

Finding the Fourth Proportional to 977,621.58, 1,349,114.67 and 569,964.78

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Solution

The fourth proportional to 977,621.58, 1,349,114.67 and 569,964.78 is: 786,549.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,621.58 : 1,349,114.67 = 569,964.78 : x
  2. Step 2: Convert to fraction form
    977,621.58/1,349,114.67 = 569,964.78/x
  3. Step 3: Cross multiply
    977,621.58x = 1,349,114.67 × 569,964.78
  4. Step 4: Simplify right side
    977,621.58x = 768,947,846,081.32
  5. Step 5: Solve for x
    x = 768,947,846,081.32/977,621.58
  6. Step 6: Final answer
    x = 786,549.58

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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.