Home / 1,698,655.40-2,547,983.10-687,775.40

Finding the Fourth Proportional to 1,698,655.40, 2,547,983.10 and 687,775.40

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Solution

The fourth proportional to 1,698,655.40, 2,547,983.10 and 687,775.40 is: 1,031,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698,655.40 : 2,547,983.10 = 687,775.40 : x
  2. Step 2: Convert to fraction form
    1,698,655.40/2,547,983.10 = 687,775.40/x
  3. Step 3: Cross multiply
    1,698,655.40x = 2,547,983.10 × 687,775.40
  4. Step 4: Simplify right side
    1,698,655.40x = 1,752,440,095,795.74
  5. Step 5: Solve for x
    x = 1,752,440,095,795.74/1,698,655.40
  6. Step 6: Final answer
    x = 1,031,663.10

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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.