Home / 651,063.20-977,170.80-384,490.40

Finding the Fourth Proportional to 651,063.20, 977,170.80 and 384,490.40

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Solution

The fourth proportional to 651,063.20, 977,170.80 and 384,490.40 is: 577,075.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,063.20 : 977,170.80 = 384,490.40 : x
  2. Step 2: Convert to fraction form
    651,063.20/977,170.80 = 384,490.40/x
  3. Step 3: Cross multiply
    651,063.20x = 977,170.80 × 384,490.40
  4. Step 4: Simplify right side
    651,063.20x = 375,712,791,760.32
  5. Step 5: Solve for x
    x = 375,712,791,760.32/651,063.20
  6. Step 6: Final answer
    x = 577,075.76

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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.