Home / 935,503.18-1,290,994.05-505,783.18

Finding the Fourth Proportional to 935,503.18, 1,290,994.05 and 505,783.18

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Solution

The fourth proportional to 935,503.18, 1,290,994.05 and 505,783.18 is: 697,980.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,503.18 : 1,290,994.05 = 505,783.18 : x
  2. Step 2: Convert to fraction form
    935,503.18/1,290,994.05 = 505,783.18/x
  3. Step 3: Cross multiply
    935,503.18x = 1,290,994.05 × 505,783.18
  4. Step 4: Simplify right side
    935,503.18x = 652,963,075,970.08
  5. Step 5: Solve for x
    x = 652,963,075,970.08/935,503.18
  6. Step 6: Final answer
    x = 697,980.61

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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.