Home / 1,031,721.40-1,547,582.10-921,496.60

Finding the Fourth Proportional to 1,031,721.40, 1,547,582.10 and 921,496.60

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Solution

The fourth proportional to 1,031,721.40, 1,547,582.10 and 921,496.60 is: 1,382,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,721.40 : 1,547,582.10 = 921,496.60 : x
  2. Step 2: Convert to fraction form
    1,031,721.40/1,547,582.10 = 921,496.60/x
  3. Step 3: Cross multiply
    1,031,721.40x = 1,547,582.10 × 921,496.60
  4. Step 4: Simplify right side
    1,031,721.40x = 1,426,091,643,370.86
  5. Step 5: Solve for x
    x = 1,426,091,643,370.86/1,031,721.40
  6. Step 6: Final answer
    x = 1,382,244.90

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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.