Finding the Fourth Proportional to 740,547.08, 1,021,992.18 and 434,636.72
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Solution
The fourth proportional to 740,547.08, 1,021,992.18 and 434,636.72 is: 599,820.51
Step by Step Solution
- Step 1: Write the proportion equation
740,547.08 : 1,021,992.18 = 434,636.72 : x - Step 2: Convert to fraction form
740,547.08/1,021,992.18 = 434,636.72/x - Step 3: Cross multiply
740,547.08x = 1,021,992.18 × 434,636.72 - Step 4: Simplify right side
740,547.08x = 444,195,328,980.85 - Step 5: Solve for x
x = 444,195,328,980.85/740,547.08 - Step 6: Final answer
x = 599,820.51
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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.