Home / 4,679,726.40-7,020,901.80-1,985,342.40

Finding the Fourth Proportional to 4,679,726.40, 7,020,901.80 and 1,985,342.40

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Solution

The fourth proportional to 4,679,726.40, 7,020,901.80 and 1,985,342.40 is: 2,978,570.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679,726.40 : 7,020,901.80 = 1,985,342.40 : x
  2. Step 2: Convert to fraction form
    4,679,726.40/7,020,901.80 = 1,985,342.40/x
  3. Step 3: Cross multiply
    4,679,726.40x = 7,020,901.80 × 1,985,342.40
  4. Step 4: Simplify right side
    4,679,726.40x = 13,938,894,029,776.32
  5. Step 5: Solve for x
    x = 13,938,894,029,776.32/4,679,726.40
  6. Step 6: Final answer
    x = 2,978,570.29

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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.