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Finding the Fourth Proportional to 660,877.16, 912,055.58 and 374,399.60

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Solution

The fourth proportional to 660,877.16, 912,055.58 and 374,399.60 is: 516,697.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,877.16 : 912,055.58 = 374,399.60 : x
  2. Step 2: Convert to fraction form
    660,877.16/912,055.58 = 374,399.60/x
  3. Step 3: Cross multiply
    660,877.16x = 912,055.58 × 374,399.60
  4. Step 4: Simplify right side
    660,877.16x = 341,473,244,329.77
  5. Step 5: Solve for x
    x = 341,473,244,329.77/660,877.16
  6. Step 6: Final answer
    x = 516,697.00

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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.