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Finding the Fourth Proportional to 710,590.08, 1,065,358.08 and 430,040.64

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Solution

The fourth proportional to 710,590.08, 1,065,358.08 and 430,040.64 is: 644,742.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,590.08 : 1,065,358.08 = 430,040.64 : x
  2. Step 2: Convert to fraction form
    710,590.08/1,065,358.08 = 430,040.64/x
  3. Step 3: Cross multiply
    710,590.08x = 1,065,358.08 × 430,040.64
  4. Step 4: Simplify right side
    710,590.08x = 458,147,270,552.37
  5. Step 5: Solve for x
    x = 458,147,270,552.37/710,590.08
  6. Step 6: Final answer
    x = 644,742.00

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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.