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Finding the Fourth Proportional to 669,775.50, 924,290.55 and 367,988.94

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Solution

The fourth proportional to 669,775.50, 924,290.55 and 367,988.94 is: 507,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,775.50 : 924,290.55 = 367,988.94 : x
  2. Step 2: Convert to fraction form
    669,775.50/924,290.55 = 367,988.94/x
  3. Step 3: Cross multiply
    669,775.50x = 924,290.55 × 367,988.94
  4. Step 4: Simplify right side
    669,775.50x = 340,128,699,746.52
  5. Step 5: Solve for x
    x = 340,128,699,746.52/669,775.50
  6. Step 6: Final answer
    x = 507,824.93

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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.