Home / 1,289,730.04-1,779,686.04-745,783.72

Finding the Fourth Proportional to 1,289,730.04, 1,779,686.04 and 745,783.72

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Solution

The fourth proportional to 1,289,730.04, 1,779,686.04 and 745,783.72 is: 1,029,099.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,730.04 : 1,779,686.04 = 745,783.72 : x
  2. Step 2: Convert to fraction form
    1,289,730.04/1,779,686.04 = 745,783.72/x
  3. Step 3: Cross multiply
    1,289,730.04x = 1,779,686.04 × 745,783.72
  4. Step 4: Simplify right side
    1,289,730.04x = 1,327,260,875,343.27
  5. Step 5: Solve for x
    x = 1,327,260,875,343.27/1,289,730.04
  6. Step 6: Final answer
    x = 1,029,099.76

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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.