Home / 688,289.51-1,032,582.02-288,699.98

Finding the Fourth Proportional to 688,289.51, 1,032,582.02 and 288,699.98

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Solution

The fourth proportional to 688,289.51, 1,032,582.02 and 288,699.98 is: 433,111.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,289.51 : 1,032,582.02 = 288,699.98 : x
  2. Step 2: Convert to fraction form
    688,289.51/1,032,582.02 = 288,699.98/x
  3. Step 3: Cross multiply
    688,289.51x = 1,032,582.02 × 288,699.98
  4. Step 4: Simplify right side
    688,289.51x = 298,106,401,915.95
  5. Step 5: Solve for x
    x = 298,106,401,915.95/688,289.51
  6. Step 6: Final answer
    x = 433,111.94

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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.