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Finding the Fourth Proportional to 530,859.45, 745,302.75 and 530,859.45

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Solution

The fourth proportional to 530,859.45, 745,302.75 and 530,859.45 is: 745,302.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,859.45 : 745,302.75 = 530,859.45 : x
  2. Step 2: Convert to fraction form
    530,859.45/745,302.75 = 530,859.45/x
  3. Step 3: Cross multiply
    530,859.45x = 745,302.75 × 530,859.45
  4. Step 4: Simplify right side
    530,859.45x = 395,651,007,948.49
  5. Step 5: Solve for x
    x = 395,651,007,948.49/530,859.45
  6. Step 6: Final answer
    x = 745,302.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.