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Finding the Fourth Proportional to 673,805.10, 1,010,707.65 and 618,692.70

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Solution

The fourth proportional to 673,805.10, 1,010,707.65 and 618,692.70 is: 928,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,805.10 : 1,010,707.65 = 618,692.70 : x
  2. Step 2: Convert to fraction form
    673,805.10/1,010,707.65 = 618,692.70/x
  3. Step 3: Cross multiply
    673,805.10x = 1,010,707.65 × 618,692.70
  4. Step 4: Simplify right side
    673,805.10x = 625,317,444,889.16
  5. Step 5: Solve for x
    x = 625,317,444,889.16/673,805.10
  6. Step 6: Final answer
    x = 928,039.05

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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.