Home / 771,887.40-1,065,204.60-470,081.40

Finding the Fourth Proportional to 771,887.40, 1,065,204.60 and 470,081.40

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Solution

The fourth proportional to 771,887.40, 1,065,204.60 and 470,081.40 is: 648,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,887.40 : 1,065,204.60 = 470,081.40 : x
  2. Step 2: Convert to fraction form
    771,887.40/1,065,204.60 = 470,081.40/x
  3. Step 3: Cross multiply
    771,887.40x = 1,065,204.60 × 470,081.40
  4. Step 4: Simplify right side
    771,887.40x = 500,732,869,654.44
  5. Step 5: Solve for x
    x = 500,732,869,654.44/771,887.40
  6. Step 6: Final answer
    x = 648,712.32

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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.