Home / 840,368.80-1,159,666.32-458,392.48

Finding the Fourth Proportional to 840,368.80, 1,159,666.32 and 458,392.48

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Solution

The fourth proportional to 840,368.80, 1,159,666.32 and 458,392.48 is: 632,558.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,368.80 : 1,159,666.32 = 458,392.48 : x
  2. Step 2: Convert to fraction form
    840,368.80/1,159,666.32 = 458,392.48/x
  3. Step 3: Cross multiply
    840,368.80x = 1,159,666.32 × 458,392.48
  4. Step 4: Simplify right side
    840,368.80x = 531,582,320,397.27
  5. Step 5: Solve for x
    x = 531,582,320,397.27/840,368.80
  6. Step 6: Final answer
    x = 632,558.37

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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.