Finding the Fourth Proportional to 1,130,726.16, 1,696,172.28 and 420,754.08
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Solution
The fourth proportional to 1,130,726.16, 1,696,172.28 and 420,754.08 is: 631,162.02
Step by Step Solution
- Step 1: Write the proportion equation
1,130,726.16 : 1,696,172.28 = 420,754.08 : x - Step 2: Convert to fraction form
1,130,726.16/1,696,172.28 = 420,754.08/x - Step 3: Cross multiply
1,130,726.16x = 1,696,172.28 × 420,754.08 - Step 4: Simplify right side
1,130,726.16x = 713,671,407,192.90 - Step 5: Solve for x
x = 713,671,407,192.90/1,130,726.16 - Step 6: Final answer
x = 631,162.02
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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.