Home / 739,247.36-1,020,162.08-399,715.52

Finding the Fourth Proportional to 739,247.36, 1,020,162.08 and 399,715.52

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Solution

The fourth proportional to 739,247.36, 1,020,162.08 and 399,715.52 is: 551,607.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,247.36 : 1,020,162.08 = 399,715.52 : x
  2. Step 2: Convert to fraction form
    739,247.36/1,020,162.08 = 399,715.52/x
  3. Step 3: Cross multiply
    739,247.36x = 1,020,162.08 × 399,715.52
  4. Step 4: Simplify right side
    739,247.36x = 407,774,616,291.48
  5. Step 5: Solve for x
    x = 407,774,616,291.48/739,247.36
  6. Step 6: Final answer
    x = 551,607.81

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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.