Home / 855,646.13-1,180,445.60-492,875.69

Finding the Fourth Proportional to 855,646.13, 1,180,445.60 and 492,875.69

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Solution

The fourth proportional to 855,646.13, 1,180,445.60 and 492,875.69 is: 679,969.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,646.13 : 1,180,445.60 = 492,875.69 : x
  2. Step 2: Convert to fraction form
    855,646.13/1,180,445.60 = 492,875.69/x
  3. Step 3: Cross multiply
    855,646.13x = 1,180,445.60 × 492,875.69
  4. Step 4: Simplify right side
    855,646.13x = 581,812,934,937.43
  5. Step 5: Solve for x
    x = 581,812,934,937.43/855,646.13
  6. Step 6: Final answer
    x = 679,969.11

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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.