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Finding the Fourth Proportional to 651,521.80, 977,412.30 and 547,064.20

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Solution

The fourth proportional to 651,521.80, 977,412.30 and 547,064.20 is: 820,705.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,521.80 : 977,412.30 = 547,064.20 : x
  2. Step 2: Convert to fraction form
    651,521.80/977,412.30 = 547,064.20/x
  3. Step 3: Cross multiply
    651,521.80x = 977,412.30 × 547,064.20
  4. Step 4: Simplify right side
    651,521.80x = 534,707,277,969.66
  5. Step 5: Solve for x
    x = 534,707,277,969.66/651,521.80
  6. Step 6: Final answer
    x = 820,705.12

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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.