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Finding the Fourth Proportional to 711,504, 982,108.80 and 510,883.20

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Solution

The fourth proportional to 711,504, 982,108.80 and 510,883.20 is: 705,186.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,504 : 982,108.80 = 510,883.20 : x
  2. Step 2: Convert to fraction form
    711,504/982,108.80 = 510,883.20/x
  3. Step 3: Cross multiply
    711,504x = 982,108.80 × 510,883.20
  4. Step 4: Simplify right side
    711,504x = 501,742,886,492.16
  5. Step 5: Solve for x
    x = 501,742,886,492.16/711,504
  6. Step 6: Final answer
    x = 705,186.32

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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.