Home / 648,075.60-972,113.40-545,432.40

Finding the Fourth Proportional to 648,075.60, 972,113.40 and 545,432.40

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Solution

The fourth proportional to 648,075.60, 972,113.40 and 545,432.40 is: 818,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,075.60 : 972,113.40 = 545,432.40 : x
  2. Step 2: Convert to fraction form
    648,075.60/972,113.40 = 545,432.40/x
  3. Step 3: Cross multiply
    648,075.60x = 972,113.40 × 545,432.40
  4. Step 4: Simplify right side
    648,075.60x = 530,222,144,834.16
  5. Step 5: Solve for x
    x = 530,222,144,834.16/648,075.60
  6. Step 6: Final answer
    x = 818,148.60

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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.