Home / 887,070.40-1,330,277.55-288,051.10

Finding the Fourth Proportional to 887,070.40, 1,330,277.55 and 288,051.10

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Solution

The fourth proportional to 887,070.40, 1,330,277.55 and 288,051.10 is: 431,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,070.40 : 1,330,277.55 = 288,051.10 : x
  2. Step 2: Convert to fraction form
    887,070.40/1,330,277.55 = 288,051.10/x
  3. Step 3: Cross multiply
    887,070.40x = 1,330,277.55 × 288,051.10
  4. Step 4: Simplify right side
    887,070.40x = 383,187,911,582.81
  5. Step 5: Solve for x
    x = 383,187,911,582.81/887,070.40
  6. Step 6: Final answer
    x = 431,970.13

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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.