Finding the Fourth Proportional to 840,921.47, 1,160,107.58 and 514,248.76
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Solution
The fourth proportional to 840,921.47, 1,160,107.58 and 514,248.76 is: 709,440.66
Step by Step Solution
- Step 1: Write the proportion equation
840,921.47 : 1,160,107.58 = 514,248.76 : x - Step 2: Convert to fraction form
840,921.47/1,160,107.58 = 514,248.76/x - Step 3: Cross multiply
840,921.47x = 1,160,107.58 × 514,248.76 - Step 4: Simplify right side
840,921.47x = 596,583,884,810.63 - Step 5: Solve for x
x = 596,583,884,810.63/840,921.47 - Step 6: Final answer
x = 709,440.66
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1.5x scale
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.