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Finding the Fourth Proportional to 669,822.40, 924,312.80 and 616,323.52

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Solution

The fourth proportional to 669,822.40, 924,312.80 and 616,323.52 is: 850,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,822.40 : 924,312.80 = 616,323.52 : x
  2. Step 2: Convert to fraction form
    669,822.40/924,312.80 = 616,323.52/x
  3. Step 3: Cross multiply
    669,822.40x = 924,312.80 × 616,323.52
  4. Step 4: Simplify right side
    669,822.40x = 569,675,718,477.06
  5. Step 5: Solve for x
    x = 569,675,718,477.06/669,822.40
  6. Step 6: Final answer
    x = 850,487.71

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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.