Home / 684,426.47-1,026,784.26-257,953.28

Finding the Fourth Proportional to 684,426.47, 1,026,784.26 and 257,953.28

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Solution

The fourth proportional to 684,426.47, 1,026,784.26 and 257,953.28 is: 386,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,426.47 : 1,026,784.26 = 257,953.28 : x
  2. Step 2: Convert to fraction form
    684,426.47/1,026,784.26 = 257,953.28/x
  3. Step 3: Cross multiply
    684,426.47x = 1,026,784.26 × 257,953.28
  4. Step 4: Simplify right side
    684,426.47x = 264,862,362,585.45
  5. Step 5: Solve for x
    x = 264,862,362,585.45/684,426.47
  6. Step 6: Final answer
    x = 386,984.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.