Home / 1,095,391.02-1,643,068.76-421,618.70

Finding the Fourth Proportional to 1,095,391.02, 1,643,068.76 and 421,618.70

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Solution

The fourth proportional to 1,095,391.02, 1,643,068.76 and 421,618.70 is: 632,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,391.02 : 1,643,068.76 = 421,618.70 : x
  2. Step 2: Convert to fraction form
    1,095,391.02/1,643,068.76 = 421,618.70/x
  3. Step 3: Cross multiply
    1,095,391.02x = 1,643,068.76 × 421,618.70
  4. Step 4: Simplify right side
    1,095,391.02x = 692,748,514,601.81
  5. Step 5: Solve for x
    x = 692,748,514,601.81/1,095,391.02
  6. Step 6: Final answer
    x = 632,421.21

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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.