Finding the Fourth Proportional to 1,445,652.16, 1,994,345.76 and 872,509.12
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Solution
The fourth proportional to 1,445,652.16, 1,994,345.76 and 872,509.12 is: 1,203,667.74
Step by Step Solution
- Step 1: Write the proportion equation
1,445,652.16 : 1,994,345.76 = 872,509.12 : x - Step 2: Convert to fraction form
1,445,652.16/1,994,345.76 = 872,509.12/x - Step 3: Cross multiply
1,445,652.16x = 1,994,345.76 × 872,509.12 - Step 4: Simplify right side
1,445,652.16x = 1,740,084,864,033.33 - Step 5: Solve for x
x = 1,740,084,864,033.33/1,445,652.16 - Step 6: Final answer
x = 1,203,667.74
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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.