Finding the Fourth Proportional to 817,688.07, 1,128,398.06 and 455,112.02
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Solution
The fourth proportional to 817,688.07, 1,128,398.06 and 455,112.02 is: 628,048.20
Step by Step Solution
- Step 1: Write the proportion equation
817,688.07 : 1,128,398.06 = 455,112.02 : x - Step 2: Convert to fraction form
817,688.07/1,128,398.06 = 455,112.02/x - Step 3: Cross multiply
817,688.07x = 1,128,398.06 × 455,112.02 - Step 4: Simplify right side
817,688.07x = 513,547,524,409.46 - Step 5: Solve for x
x = 513,547,524,409.46/817,688.07 - Step 6: Final answer
x = 628,048.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.