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Finding the Fourth Proportional to 1,355,547, 1,870,742.40 and 751,935

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Solution

The fourth proportional to 1,355,547, 1,870,742.40 and 751,935 is: 1,037,718.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,547 : 1,870,742.40 = 751,935 : x
  2. Step 2: Convert to fraction form
    1,355,547/1,870,742.40 = 751,935/x
  3. Step 3: Cross multiply
    1,355,547x = 1,870,742.40 × 751,935
  4. Step 4: Simplify right side
    1,355,547x = 1,406,676,686,544
  5. Step 5: Solve for x
    x = 1,406,676,686,544/1,355,547
  6. Step 6: Final answer
    x = 1,037,718.86

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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.