Home / 706,755.08-975,101.82-400,807.40

Finding the Fourth Proportional to 706,755.08, 975,101.82 and 400,807.40

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Solution

The fourth proportional to 706,755.08, 975,101.82 and 400,807.40 is: 552,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,755.08 : 975,101.82 = 400,807.40 : x
  2. Step 2: Convert to fraction form
    706,755.08/975,101.82 = 400,807.40/x
  3. Step 3: Cross multiply
    706,755.08x = 975,101.82 × 400,807.40
  4. Step 4: Simplify right side
    706,755.08x = 390,828,025,209.47
  5. Step 5: Solve for x
    x = 390,828,025,209.47/706,755.08
  6. Step 6: Final answer
    x = 552,989.34

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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.