Home / 1,155,206.40-1,732,809.60-972,729.60

Finding the Fourth Proportional to 1,155,206.40, 1,732,809.60 and 972,729.60

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Solution

The fourth proportional to 1,155,206.40, 1,732,809.60 and 972,729.60 is: 1,459,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,206.40 : 1,732,809.60 = 972,729.60 : x
  2. Step 2: Convert to fraction form
    1,155,206.40/1,732,809.60 = 972,729.60/x
  3. Step 3: Cross multiply
    1,155,206.40x = 1,732,809.60 × 972,729.60
  4. Step 4: Simplify right side
    1,155,206.40x = 1,685,555,189,084.16
  5. Step 5: Solve for x
    x = 1,685,555,189,084.16/1,155,206.40
  6. Step 6: Final answer
    x = 1,459,094.40

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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.