Home / 770,762.40-1,155,970.80-506,378.40

Finding the Fourth Proportional to 770,762.40, 1,155,970.80 and 506,378.40

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Solution

The fourth proportional to 770,762.40, 1,155,970.80 and 506,378.40 is: 759,454.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,762.40 : 1,155,970.80 = 506,378.40 : x
  2. Step 2: Convert to fraction form
    770,762.40/1,155,970.80 = 506,378.40/x
  3. Step 3: Cross multiply
    770,762.40x = 1,155,970.80 × 506,378.40
  4. Step 4: Simplify right side
    770,762.40x = 585,358,644,150.72
  5. Step 5: Solve for x
    x = 585,358,644,150.72/770,762.40
  6. Step 6: Final answer
    x = 759,454.07

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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.