Home / 703,823.64-971,264.70-397,895.28

Finding the Fourth Proportional to 703,823.64, 971,264.70 and 397,895.28

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Solution

The fourth proportional to 703,823.64, 971,264.70 and 397,895.28 is: 549,088.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,823.64 : 971,264.70 = 397,895.28 : x
  2. Step 2: Convert to fraction form
    703,823.64/971,264.70 = 397,895.28/x
  3. Step 3: Cross multiply
    703,823.64x = 971,264.70 × 397,895.28
  4. Step 4: Simplify right side
    703,823.64x = 386,461,639,760.62
  5. Step 5: Solve for x
    x = 386,461,639,760.62/703,823.64
  6. Step 6: Final answer
    x = 549,088.75

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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.