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Finding the Fourth Proportional to 646,050.80, 891,567.60 and 359,602.40

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Solution

The fourth proportional to 646,050.80, 891,567.60 and 359,602.40 is: 496,261.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,050.80 : 891,567.60 = 359,602.40 : x
  2. Step 2: Convert to fraction form
    646,050.80/891,567.60 = 359,602.40/x
  3. Step 3: Cross multiply
    646,050.80x = 891,567.60 × 359,602.40
  4. Step 4: Simplify right side
    646,050.80x = 320,609,848,722.24
  5. Step 5: Solve for x
    x = 320,609,848,722.24/646,050.80
  6. Step 6: Final answer
    x = 496,261.05

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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.