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Finding the Fourth Proportional to 660,740.67, 912,260.95 and 507,504.87

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Solution

The fourth proportional to 660,740.67, 912,260.95 and 507,504.87 is: 700,693.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,740.67 : 912,260.95 = 507,504.87 : x
  2. Step 2: Convert to fraction form
    660,740.67/912,260.95 = 507,504.87/x
  3. Step 3: Cross multiply
    660,740.67x = 912,260.95 × 507,504.87
  4. Step 4: Simplify right side
    660,740.67x = 462,976,873,567.06
  5. Step 5: Solve for x
    x = 462,976,873,567.06/660,740.67
  6. Step 6: Final answer
    x = 700,693.77

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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.