Home / 1,039,729.60-1,559,594.40-921,631.60

Finding the Fourth Proportional to 1,039,729.60, 1,559,594.40 and 921,631.60

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Solution

The fourth proportional to 1,039,729.60, 1,559,594.40 and 921,631.60 is: 1,382,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,729.60 : 1,559,594.40 = 921,631.60 : x
  2. Step 2: Convert to fraction form
    1,039,729.60/1,559,594.40 = 921,631.60/x
  3. Step 3: Cross multiply
    1,039,729.60x = 1,559,594.40 × 921,631.60
  4. Step 4: Simplify right side
    1,039,729.60x = 1,437,371,482,223.04
  5. Step 5: Solve for x
    x = 1,437,371,482,223.04/1,039,729.60
  6. Step 6: Final answer
    x = 1,382,447.40

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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.