Home / 613,637.48-846,095.14-420,139.02

Finding the Fourth Proportional to 613,637.48, 846,095.14 and 420,139.02

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Solution

The fourth proportional to 613,637.48, 846,095.14 and 420,139.02 is: 579,295.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,637.48 : 846,095.14 = 420,139.02 : x
  2. Step 2: Convert to fraction form
    613,637.48/846,095.14 = 420,139.02/x
  3. Step 3: Cross multiply
    613,637.48x = 846,095.14 × 420,139.02
  4. Step 4: Simplify right side
    613,637.48x = 355,477,582,946.36
  5. Step 5: Solve for x
    x = 355,477,582,946.36/613,637.48
  6. Step 6: Final answer
    x = 579,295.75

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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.