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Finding the Fourth Proportional to 432,030.45, 648,045.68 and 432,030.45

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Solution

The fourth proportional to 432,030.45, 648,045.68 and 432,030.45 is: 648,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,030.45 : 648,045.68 = 432,030.45 : x
  2. Step 2: Convert to fraction form
    432,030.45/648,045.68 = 432,030.45/x
  3. Step 3: Cross multiply
    432,030.45x = 648,045.68 × 432,030.45
  4. Step 4: Simplify right side
    432,030.45x = 279,975,464,590.80
  5. Step 5: Solve for x
    x = 279,975,464,590.80/432,030.45
  6. Step 6: Final answer
    x = 648,045.68

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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.