Home / 987,784.29-1,363,148.87-535,075.29

Finding the Fourth Proportional to 987,784.29, 1,363,148.87 and 535,075.29

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Solution

The fourth proportional to 987,784.29, 1,363,148.87 and 535,075.29 is: 738,407.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,784.29 : 1,363,148.87 = 535,075.29 : x
  2. Step 2: Convert to fraction form
    987,784.29/1,363,148.87 = 535,075.29/x
  3. Step 3: Cross multiply
    987,784.29x = 1,363,148.87 × 535,075.29
  4. Step 4: Simplify right side
    987,784.29x = 729,387,274,253.05
  5. Step 5: Solve for x
    x = 729,387,274,253.05/987,784.29
  6. Step 6: Final answer
    x = 738,407.45

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1.5x scale

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.